Actor(s): APT 30
FireEye details ORANGEADE as a dropper for the CREAMSICLE malware.
rule win_orangeade_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-01-25" version = "1" description = "Detects win.orangeade." 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.orangeade" malpedia_rule_date = "20230124" malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686" malpedia_version = "20230125" 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 = { 57 33db b940000000 33c0 8dbc2465020000 889c2464020000 } // n = 6, score = 100 // 57 | push edi // 33db | xor ebx, ebx // b940000000 | mov ecx, 0x40 // 33c0 | xor eax, eax // 8dbc2465020000 | lea edi, [esp + 0x265] // 889c2464020000 | mov byte ptr [esp + 0x264], bl $sequence_1 = { 8d4c2420 c684249428010001 e8???????? 85c0 753e 8d4c2414 } // n = 6, score = 100 // 8d4c2420 | lea ecx, [esp + 0x20] // c684249428010001 | mov byte ptr [esp + 0x12894], 1 // e8???????? | // 85c0 | test eax, eax // 753e | jne 0x40 // 8d4c2414 | lea ecx, [esp + 0x14] $sequence_2 = { 6804010000 50 c784242805000001000000 ff15???????? 8d8c2418020000 8d942418040000 51 } // n = 7, score = 100 // 6804010000 | push 0x104 // 50 | push eax // c784242805000001000000 | mov dword ptr [esp + 0x528], 1 // ff15???????? | // 8d8c2418020000 | lea ecx, [esp + 0x218] // 8d942418040000 | lea edx, [esp + 0x418] // 51 | push ecx $sequence_3 = { 8b4c240c 50 51 8d4c242c } // n = 4, score = 100 // 8b4c240c | mov ecx, dword ptr [esp + 0xc] // 50 | push eax // 51 | push ecx // 8d4c242c | lea ecx, [esp + 0x2c] $sequence_4 = { e8???????? 33c0 8b8c2480280100 5f } // n = 4, score = 100 // e8???????? | // 33c0 | xor eax, eax // 8b8c2480280100 | mov ecx, dword ptr [esp + 0x12880] // 5f | pop edi $sequence_5 = { 51 8d4c2420 c684249428010001 e8???????? 85c0 753e } // n = 6, score = 100 // 51 | push ecx // 8d4c2420 | lea ecx, [esp + 0x20] // c684249428010001 | mov byte ptr [esp + 0x12894], 1 // e8???????? | // 85c0 | test eax, eax // 753e | jne 0x40 $sequence_6 = { b93f000000 33c0 8dbc2419040000 889c2418040000 } // n = 4, score = 100 // b93f000000 | mov ecx, 0x3f // 33c0 | xor eax, eax // 8dbc2419040000 | lea edi, [esp + 0x419] // 889c2418040000 | mov byte ptr [esp + 0x418], bl $sequence_7 = { 8d942468030000 51 8d84246c040000 52 } // n = 4, score = 100 // 8d942468030000 | lea edx, [esp + 0x368] // 51 | push ecx // 8d84246c040000 | lea eax, [esp + 0x46c] // 52 | push edx $sequence_8 = { 50 53 c744247401000000 66895c2478 } // n = 4, score = 100 // 50 | push eax // 53 | push ebx // c744247401000000 | mov dword ptr [esp + 0x74], 1 // 66895c2478 | mov word ptr [esp + 0x78], bx $sequence_9 = { c784242805000001000000 ff15???????? 8d8c2418020000 8d942418040000 51 } // n = 5, score = 100 // c784242805000001000000 | mov dword ptr [esp + 0x528], 1 // ff15???????? | // 8d8c2418020000 | lea ecx, [esp + 0x218] // 8d942418040000 | lea edx, [esp + 0x418] // 51 | push ecx condition: 7 of them and filesize < 139264 }
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