Actor(s): Lazarus Group
There is no description at this point.
rule win_artfulpie_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-07-11" version = "1" description = "Detects win.artfulpie." info = "autogenerated rule brought to you by yara-signator" tool = "yara-signator v0.6.0" signator_config = "callsandjumps;datarefs;binvalue" malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.artfulpie" malpedia_rule_date = "20230705" malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41" malpedia_version = "20230715" 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 = { 1bc0 23c1 eb55 8b1c9d24e24000 56 } // n = 5, score = 100 // 1bc0 | sbb eax, eax // 23c1 | and eax, ecx // eb55 | jmp 0x57 // 8b1c9d24e24000 | mov ebx, dword ptr [ebx*4 + 0x40e224] // 56 | push esi $sequence_1 = { 83e908 8d7608 660fd60f 8d7f08 8b048dd4d34000 ffe0 } // n = 6, score = 100 // 83e908 | sub ecx, 8 // 8d7608 | lea esi, [esi + 8] // 660fd60f | movq qword ptr [edi], xmm1 // 8d7f08 | lea edi, [edi + 8] // 8b048dd4d34000 | mov eax, dword ptr [ecx*4 + 0x40d3d4] // ffe0 | jmp eax $sequence_2 = { 85f6 7420 6bc618 57 8db8b44b4100 57 ff15???????? } // n = 7, score = 100 // 85f6 | test esi, esi // 7420 | je 0x22 // 6bc618 | imul eax, esi, 0x18 // 57 | push edi // 8db8b44b4100 | lea edi, [eax + 0x414bb4] // 57 | push edi // ff15???????? | $sequence_3 = { eb07 c7431801000000 8bcb e8???????? 85c0 743d 8bcb } // n = 7, score = 100 // eb07 | jmp 9 // c7431801000000 | mov dword ptr [ebx + 0x18], 1 // 8bcb | mov ecx, ebx // e8???????? | // 85c0 | test eax, eax // 743d | je 0x3f // 8bcb | mov ecx, ebx $sequence_4 = { e9???????? 57 33ff 8bcf 8bc7 894de4 399800424100 } // n = 7, score = 100 // e9???????? | // 57 | push edi // 33ff | xor edi, edi // 8bcf | mov ecx, edi // 8bc7 | mov eax, edi // 894de4 | mov dword ptr [ebp - 0x1c], ecx // 399800424100 | cmp dword ptr [eax + 0x414200], ebx $sequence_5 = { 8b404c 83b8a800000000 7512 8b04bd984e4100 807c302900 7504 } // n = 6, score = 100 // 8b404c | mov eax, dword ptr [eax + 0x4c] // 83b8a800000000 | cmp dword ptr [eax + 0xa8], 0 // 7512 | jne 0x14 // 8b04bd984e4100 | mov eax, dword ptr [edi*4 + 0x414e98] // 807c302900 | cmp byte ptr [eax + esi + 0x29], 0 // 7504 | jne 6 $sequence_6 = { eb34 8b4604 03c1 3bf8 7253 } // n = 5, score = 100 // eb34 | jmp 0x36 // 8b4604 | mov eax, dword ptr [esi + 4] // 03c1 | add eax, ecx // 3bf8 | cmp edi, eax // 7253 | jb 0x55 $sequence_7 = { 8d4598 50 6a00 6a00 56 c745c807020000 } // n = 6, score = 100 // 8d4598 | lea eax, [ebp - 0x68] // 50 | push eax // 6a00 | push 0 // 6a00 | push 0 // 56 | push esi // c745c807020000 | mov dword ptr [ebp - 0x38], 0x207 $sequence_8 = { 81fa00010000 7313 8a87fc414100 08441619 42 0fb64101 } // n = 6, score = 100 // 81fa00010000 | cmp edx, 0x100 // 7313 | jae 0x15 // 8a87fc414100 | mov al, byte ptr [edi + 0x4141fc] // 08441619 | or byte ptr [esi + edx + 0x19], al // 42 | inc edx // 0fb64101 | movzx eax, byte ptr [ecx + 1] $sequence_9 = { 7512 8b04bd984e4100 807c302900 7504 32c0 eb1a } // n = 6, score = 100 // 7512 | jne 0x14 // 8b04bd984e4100 | mov eax, dword ptr [edi*4 + 0x414e98] // 807c302900 | cmp byte ptr [eax + esi + 0x29], 0 // 7504 | jne 6 // 32c0 | xor al, al // eb1a | jmp 0x1c condition: 7 of them and filesize < 204800 }
rule win_artfulpie_w0 { meta: description = "Detects APT38 ARTFULPIE" author = "Emanuele De Lucia" tlp = "white" malfamily = "ARTFULPIE" actor = "Lazarus Group" actor_type = "APT" malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.artfulpie" malpedia_version = "20200227" malpedia_license = "CC BY-NC-SA 4.0" malpedia_sharing = "TLP:WHITE" strings: $a = "PPPh @A" fullword ascii $b = "3>3D3M3X3h3" fullword ascii $c = "2`2d2h2p8t8x8|8" fullword ascii $d = {C7 43 (1C|20) (60|70) 1E 40 00} condition: filesize < 200KB and uint16(0) == 0x5a4d and all of them }
If your designated proposal does not fit in any other category, feel free to write a free-text in the comment field below.
Please propose all changes regarding references on the Malpedia library page
Your suggestion will be reviewed before being published. Thank you for contributing!
YYYY-MM-DD
YYYY-MM
YYYY