Analysis
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max time kernel
226s -
max time network
228s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
16-01-2023 07:21
Static task
static1
General
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Target
c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe
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Size
259KB
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MD5
e7edd336bf750b6cd3b1a8625e8d4605
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SHA1
ddcdb6fb6a23746e82c3fe86f11dec68b81b39a1
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SHA256
c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4
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SHA512
145428695c3fbd72e101bc117222ba7e30a0a7adb1cd00227cc4cf638b7d803d4c916615919d7b0af1473160336f218ecec1a22196e8596ad657488cbbfb08ba
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SSDEEP
6144:HITjqLGuP75b7WO+BMH1uzjc0JErdm03oFbU4zqQna:HIT2Kuz5eBBuuKdr3oFP
Malware Config
Extracted
lumma
77.73.134.68
Signatures
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Detects Smokeloader packer 1 IoCs
Processes:
resource yara_rule behavioral1/memory/3292-134-0x00000000006E0000-0x00000000006E9000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Blocklisted process makes network request 3 IoCs
Processes:
rundll32.exeflow pid process 54 3208 rundll32.exe 55 3208 rundll32.exe 62 3208 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
9C89.exeE73F.exepid process 3812 9C89.exe 3928 E73F.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3208 rundll32.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3488 3812 WerFault.exe 9C89.exe -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exepid process 3292 c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe 3292 c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
pid process 1204 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exepid process 3292 c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
description pid process Token: SeShutdownPrivilege 1204 Token: SeCreatePagefilePrivilege 1204 -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
9C89.exedescription pid process target process PID 1204 wrote to memory of 3812 1204 9C89.exe PID 1204 wrote to memory of 3812 1204 9C89.exe PID 1204 wrote to memory of 3812 1204 9C89.exe PID 3812 wrote to memory of 3208 3812 9C89.exe rundll32.exe PID 3812 wrote to memory of 3208 3812 9C89.exe rundll32.exe PID 3812 wrote to memory of 3208 3812 9C89.exe rundll32.exe PID 1204 wrote to memory of 3928 1204 E73F.exe PID 1204 wrote to memory of 3928 1204 E73F.exe PID 1204 wrote to memory of 3928 1204 E73F.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe"C:\Users\Admin\AppData\Local\Temp\c2a75573a025cf346b85db9db3e95b2e02d337d4058c2363d3a1e2267e78aed4.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3292
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C:\Users\Admin\AppData\Local\Temp\9C89.exeC:\Users\Admin\AppData\Local\Temp\9C89.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3812 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Sdaaysrpyefiy.tmp",Qowsuiaedfeupa2⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:3208 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3812 -s 5402⤵
- Program crash
PID:3488
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3812 -ip 38121⤵PID:1100
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C:\Users\Admin\AppData\Local\Temp\E73F.exeC:\Users\Admin\AppData\Local\Temp\E73F.exe1⤵
- Executes dropped EXE
PID:3928
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\9C89.exeFilesize
1.1MB
MD517f4caa00baa4a343b7037f575363737
SHA1af29ee05e88a3967d639b4c0e5e1ddabf32d555a
SHA2566bdc0c711117eb2484229026a82977f4a3d48e7a5ec167f3486aea5f50512462
SHA51211b0f2d11bc1f65071f0f5e2a61c01cbea448d7077764ea10ce320be98652428f1418bc3a427897dfb80e82596077cee7fa561d59a4736a1d15b0978ef9087ed
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C:\Users\Admin\AppData\Local\Temp\9C89.exeFilesize
1.1MB
MD517f4caa00baa4a343b7037f575363737
SHA1af29ee05e88a3967d639b4c0e5e1ddabf32d555a
SHA2566bdc0c711117eb2484229026a82977f4a3d48e7a5ec167f3486aea5f50512462
SHA51211b0f2d11bc1f65071f0f5e2a61c01cbea448d7077764ea10ce320be98652428f1418bc3a427897dfb80e82596077cee7fa561d59a4736a1d15b0978ef9087ed
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C:\Users\Admin\AppData\Local\Temp\E73F.exeFilesize
276KB
MD5ec5a9982316bd834d0b86f26e1c7b8f0
SHA13e21f03d7f7b156c637bfa215074938cc5721390
SHA25674bb3105998c9b5ebced3ff42889fce1c437d37f76da8ba1980762e6d88f0186
SHA512dd19a7e65888aa58af67300ca52d86d8adfb0876733f222f3b98d20d282225896f0499ea14e2966e08ac9d0963619627dcd3e0872d954c8bb70c3ad3420664ef
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C:\Users\Admin\AppData\Local\Temp\E73F.exeFilesize
276KB
MD5ec5a9982316bd834d0b86f26e1c7b8f0
SHA13e21f03d7f7b156c637bfa215074938cc5721390
SHA25674bb3105998c9b5ebced3ff42889fce1c437d37f76da8ba1980762e6d88f0186
SHA512dd19a7e65888aa58af67300ca52d86d8adfb0876733f222f3b98d20d282225896f0499ea14e2966e08ac9d0963619627dcd3e0872d954c8bb70c3ad3420664ef
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C:\Users\Admin\AppData\Local\Temp\Sdaaysrpyefiy.tmpFilesize
774KB
MD5e06fb66bfbe1444cc091f0297b8d32db
SHA1c3e13e3edcbbf30cdc51ce96cc7a802fc88e83af
SHA256b282eb3f05d375d3487d20596d783fa52aa27013e8b2b407db32d9a3a751319d
SHA512c639b62f417d46148c3a84ae5ff2cc7018c653424cc1d643a983c41d4a12f6015df0f4359c5e078c2c3e5b1d42de18acfb6aab432266a8c4e37aa5449e961d95
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C:\Users\Admin\AppData\Local\Temp\Sdaaysrpyefiy.tmpFilesize
774KB
MD5e06fb66bfbe1444cc091f0297b8d32db
SHA1c3e13e3edcbbf30cdc51ce96cc7a802fc88e83af
SHA256b282eb3f05d375d3487d20596d783fa52aa27013e8b2b407db32d9a3a751319d
SHA512c639b62f417d46148c3a84ae5ff2cc7018c653424cc1d643a983c41d4a12f6015df0f4359c5e078c2c3e5b1d42de18acfb6aab432266a8c4e37aa5449e961d95
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memory/3208-143-0x0000000000000000-mapping.dmp
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memory/3292-136-0x0000000000400000-0x0000000000446000-memory.dmpFilesize
280KB
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memory/3292-135-0x0000000000400000-0x0000000000446000-memory.dmpFilesize
280KB
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memory/3292-133-0x000000000076E000-0x0000000000784000-memory.dmpFilesize
88KB
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memory/3292-134-0x00000000006E0000-0x00000000006E9000-memory.dmpFilesize
36KB
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memory/3812-141-0x0000000002320000-0x000000000244E000-memory.dmpFilesize
1.2MB
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memory/3812-142-0x0000000000400000-0x0000000000530000-memory.dmpFilesize
1.2MB
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memory/3812-137-0x0000000000000000-mapping.dmp
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memory/3812-140-0x0000000002025000-0x000000000210E000-memory.dmpFilesize
932KB
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memory/3812-149-0x0000000000400000-0x0000000000530000-memory.dmpFilesize
1.2MB
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memory/3928-146-0x0000000000000000-mapping.dmp
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memory/3928-150-0x000000000056D000-0x0000000000587000-memory.dmpFilesize
104KB
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memory/3928-151-0x0000000000520000-0x000000000054A000-memory.dmpFilesize
168KB
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memory/3928-152-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/3928-153-0x000000000056D000-0x0000000000587000-memory.dmpFilesize
104KB