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 = "2023-12-06" 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 = "20231130" malpedia_hash = "fc8a0e9f343f6d6ded9e7df1a64dac0cc68d7351" malpedia_version = "20230808" 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 = { 8bb42428050000 50 8bce e8???????? c744241001000000 } // n = 5, score = 100 // 8bb42428050000 | mov esi, dword ptr [esp + 0x528] // 50 | push eax // 8bce | mov ecx, esi // e8???????? | // c744241001000000 | mov dword ptr [esp + 0x10], 1 $sequence_1 = { 50 8d942470020000 51 52 ff15???????? } // n = 5, score = 100 // 50 | push eax // 8d942470020000 | lea edx, [esp + 0x270] // 51 | push ecx // 52 | push edx // ff15???????? | $sequence_2 = { f3ab 66ab aa 8d842468020000 50 } // n = 5, score = 100 // f3ab | rep stosd dword ptr es:[edi], eax // 66ab | stosw word ptr es:[edi], ax // aa | stosb byte ptr es:[edi], al // 8d842468020000 | lea eax, [esp + 0x268] // 50 | push eax $sequence_3 = { 6881000000 6a00 c784249428010000000000 ff15???????? 8bf0 56 } // n = 6, score = 100 // 6881000000 | push 0x81 // 6a00 | push 0 // c784249428010000000000 | mov dword ptr [esp + 0x12894], 0 // ff15???????? | // 8bf0 | mov esi, eax // 56 | push esi $sequence_4 = { aa b93f000000 33c0 8dbc2465010000 } // n = 4, score = 100 // aa | stosb byte ptr es:[edi], al // b93f000000 | mov ecx, 0x3f // 33c0 | xor eax, eax // 8dbc2465010000 | lea edi, [esp + 0x165] $sequence_5 = { 8d4c2424 c684248828010002 e8???????? 8d4c2410 c684248828010001 e8???????? 8d4c2414 } // n = 7, score = 100 // 8d4c2424 | lea ecx, [esp + 0x24] // c684248828010002 | mov byte ptr [esp + 0x12888], 2 // e8???????? | // 8d4c2410 | lea ecx, [esp + 0x10] // c684248828010001 | mov byte ptr [esp + 0x12888], 1 // e8???????? | // 8d4c2414 | lea ecx, [esp + 0x14] $sequence_6 = { b93f000000 33c0 8d7c2479 885c2478 f3ab } // n = 5, score = 100 // b93f000000 | mov ecx, 0x3f // 33c0 | xor eax, eax // 8d7c2479 | lea edi, [esp + 0x79] // 885c2478 | mov byte ptr [esp + 0x78], bl // f3ab | rep stosd dword ptr es:[edi], eax $sequence_7 = { 68???????? 8d4c2410 e8???????? 68???????? 6884000000 53 ff15???????? } // n = 7, score = 100 // 68???????? | // 8d4c2410 | lea ecx, [esp + 0x10] // e8???????? | // 68???????? | // 6884000000 | push 0x84 // 53 | push ebx // ff15???????? | $sequence_8 = { e8???????? 83c404 8d4c2424 c684248828010002 } // n = 4, score = 100 // e8???????? | // 83c404 | add esp, 4 // 8d4c2424 | lea ecx, [esp + 0x24] // c684248828010002 | mov byte ptr [esp + 0x12888], 2 $sequence_9 = { 50 8d4c2410 c684248400000001 e8???????? } // n = 4, score = 100 // 50 | push eax // 8d4c2410 | lea ecx, [esp + 0x10] // c684248400000001 | mov byte ptr [esp + 0x84], 1 // e8???????? | condition: 7 of them and filesize < 139264 }
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