SYMBOLCOMMON_NAMEaka. SYNONYMS
win.ghole (Back to overview)

Ghole

aka: Gholee, CoreImpact (Modified)

Actor(s): Rocket Kitten


There is no description at this point.

References
2015-03-24Trend MicroCedric Pernet, Kenney Lu
@techreport{pernet:20150324:operation:65e881c, author = {Cedric Pernet and Kenney Lu}, title = {{Operation Woolen-Goldfish: When Kittens Go Phishing}}, date = {2015-03-24}, institution = {Trend Micro}, url = {http://www.trendmicro.it/media/wp/operation-woolen-goldfish-whitepaper-en.pdf}, language = {English}, urldate = {2019-07-09} } Operation Woolen-Goldfish: When Kittens Go Phishing
Ghole Woolger
2014-09-04ClearSkyClearSky Research Team
@online{team:20140904:gholee:9f6be42, author = {ClearSky Research Team}, title = {{Gholee – a “protective edge” themed spear phishing campaign}}, date = {2014-09-04}, organization = {ClearSky}, url = {https://www.clearskysec.com/gholee-a-protective-edge-themed-spear-phishing-campaign/}, language = {English}, urldate = {2020-01-10} } Gholee – a “protective edge” themed spear phishing campaign
Ghole
Yara Rules
[TLP:WHITE] win_ghole_auto (20201014 | autogenerated rule brought to you by yara-signator)
rule win_ghole_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.ghole"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 48 89c7 e8???????? 48 8b45f8 48 8b4008 }
            // n = 7, score = 100
            //   48                   | dec                 eax
            //   89c7                 | mov                 edi, eax
            //   e8????????           |                     
            //   48                   | dec                 eax
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   48                   | dec                 eax
            //   8b4008               | mov                 eax, dword ptr [eax + 8]

        $sequence_1 = { 750f d06de6 8345e001 837de007 7ee5 eb01 90 }
            // n = 7, score = 100
            //   750f                 | jne                 0x11
            //   d06de6               | shr                 byte ptr [ebp - 0x1a], 1
            //   8345e001             | add                 dword ptr [ebp - 0x20], 1
            //   837de007             | cmp                 dword ptr [ebp - 0x20], 7
            //   7ee5                 | jle                 0xffffffe7
            //   eb01                 | jmp                 3
            //   90                   | nop                 

        $sequence_2 = { 48 39c2 7549 eb25 8b5de8 8b45e8 }
            // n = 6, score = 100
            //   48                   | dec                 eax
            //   39c2                 | cmp                 edx, eax
            //   7549                 | jne                 0x4b
            //   eb25                 | jmp                 0x27
            //   8b5de8               | mov                 ebx, dword ptr [ebp - 0x18]
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]

        $sequence_3 = { 48 83ec10 48 897df8 48 837df800 740d }
            // n = 7, score = 100
            //   48                   | dec                 eax
            //   83ec10               | sub                 esp, 0x10
            //   48                   | dec                 eax
            //   897df8               | mov                 dword ptr [ebp - 8], edi
            //   48                   | dec                 eax
            //   837df800             | cmp                 dword ptr [ebp - 8], 0
            //   740d                 | je                  0xf

        $sequence_4 = { 8b45e8 48 8b9898000000 48 8b45e8 }
            // n = 5, score = 100
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]
            //   48                   | dec                 eax
            //   8b9898000000         | mov                 ebx, dword ptr [eax + 0x98]
            //   48                   | dec                 eax
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]

        $sequence_5 = { 48 8b45f0 8b8010200000 8d5001 48 8b45f0 899010200000 }
            // n = 7, score = 100
            //   48                   | dec                 eax
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   8b8010200000         | mov                 eax, dword ptr [eax + 0x2010]
            //   8d5001               | lea                 edx, [eax + 1]
            //   48                   | dec                 eax
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   899010200000         | mov                 dword ptr [eax + 0x2010], edx

        $sequence_6 = { 48 8d1410 48 8b45d0 48 8902 48 }
            // n = 7, score = 100
            //   48                   | dec                 eax
            //   8d1410               | lea                 edx, [eax + edx]
            //   48                   | dec                 eax
            //   8b45d0               | mov                 eax, dword ptr [ebp - 0x30]
            //   48                   | dec                 eax
            //   8902                 | mov                 dword ptr [edx], eax
            //   48                   | dec                 eax

        $sequence_7 = { c645e100 0fb645e6 89c2 c1e204 48 8b45d8 8810 }
            // n = 7, score = 100
            //   c645e100             | mov                 byte ptr [ebp - 0x1f], 0
            //   0fb645e6             | movzx               eax, byte ptr [ebp - 0x1a]
            //   89c2                 | mov                 edx, eax
            //   c1e204               | shl                 edx, 4
            //   48                   | dec                 eax
            //   8b45d8               | mov                 eax, dword ptr [ebp - 0x28]
            //   8810                 | mov                 byte ptr [eax], dl

        $sequence_8 = { 48 8975e0 48 8955d8 48 894dd0 48 }
            // n = 7, score = 100
            //   48                   | dec                 eax
            //   8975e0               | mov                 dword ptr [ebp - 0x20], esi
            //   48                   | dec                 eax
            //   8955d8               | mov                 dword ptr [ebp - 0x28], edx
            //   48                   | dec                 eax
            //   894dd0               | mov                 dword ptr [ebp - 0x30], ecx
            //   48                   | dec                 eax

        $sequence_9 = { 89c7 e8???????? 48 8b85c8faffff ba00000000 bed9070000 48 }
            // n = 7, score = 100
            //   89c7                 | mov                 edi, eax
            //   e8????????           |                     
            //   48                   | dec                 eax
            //   8b85c8faffff         | mov                 eax, dword ptr [ebp - 0x538]
            //   ba00000000           | mov                 edx, 0
            //   bed9070000           | mov                 esi, 0x7d9
            //   48                   | dec                 eax

    condition:
        7 of them and filesize < 622592
}
[TLP:WHITE] win_ghole_w0   (20170517 | Detects a operation Woolen-Goldfish sample - http://goo.gl/NpJpVZ)
rule win_ghole_w0 {
	meta:
		description = "Detects a operation Woolen-Goldfish sample - http://goo.gl/NpJpVZ"
		author = "Florian Roth"
		reference = "http://goo.gl/NpJpVZ"
		date = "2015/03/25"
		score = 90
		hash1 = "86222ef166474e53f1eb6d7e6701713834e6fee7"
		hash2 = "e8dbcde49c7f760165ebb0cb3452e4f1c24981f5"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/WoolenGoldfish.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.ghole"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
	strings:
		$x1 = "... get header FATAL ERROR !!!  %d bytes read > header_size" fullword ascii
		$x2 = "index.php?c=%S&r=%x&u=1&t=%S" fullword wide
		$x3 = "connect_back_tcp_channel#do_connect:: Error resolving connect back hostname" fullword ascii

		$s0 = "kernel32.dll GetProcAddressLoadLibraryAws2_32.dll" fullword ascii
		$s1 = "Content-Type: multipart/form-data; boundary=%S" fullword wide
		$s2 = "Attempting to unlock uninitialized lock!" fullword ascii
		$s4 = "unable to load kernel32.dll" fullword ascii
		$s5 = "index.php?c=%S&r=%x" fullword wide
		$s6 = "%s len:%d " fullword ascii
		$s7 = "Encountered error sending syscall response to client" fullword ascii
		$s9 = "/info.dat" fullword ascii
		$s10 = "Error entering thread lock" fullword ascii
		$s11 = "Error exiting thread lock" fullword ascii
		$s12 = "connect_back_tcp_channel_init:: socket() failed" fullword ascii
	condition:
		( 1 of ($x*) ) or
		( 8 of ($s*) )
}
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