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Analysis
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max time kernel
141s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
28/05/2024, 18:39
Behavioral task
behavioral1
Sample
virussign.com_98770af63def2b3ac13d412f41811190.exe
Resource
win7-20240508-en
General
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Target
virussign.com_98770af63def2b3ac13d412f41811190.exe
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Size
35KB
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MD5
98770af63def2b3ac13d412f41811190
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SHA1
86dda250969083d417987bdb87d89e797c1066db
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SHA256
570deeabd96f1f8231526c14405f83e14621c2a5e275c5f052437451ed49da4d
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SHA512
98380a9293bafd3acdcda2bce69b37d1095e5246f5a641ff20f915888fdbf6f87125717175e2cb671b9a0a4e03c4c61908b8a1f27142620f7db2d84d4913df39
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SSDEEP
768:M3EVdV0YXY/nckNsWheCNSdd57Do5utsp1TOIIIwjky:lVdm5/nprh3Ny57guSTOjz
Malware Config
Signatures
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Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 1104 attrib.exe -
Deletes itself 1 IoCs
pid Process 1332 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 2884 qqwhost.exe -
resource yara_rule behavioral1/memory/1224-0-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral1/files/0x0009000000012280-3.dat upx behavioral1/memory/2884-5-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral1/memory/1224-7-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral1/memory/2884-8-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral1/memory/2884-14-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral1/memory/2884-17-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral1/memory/2884-20-0x0000000000400000-0x0000000000417000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\Debug\qqwhost.exe virussign.com_98770af63def2b3ac13d412f41811190.exe File opened for modification C:\Windows\Debug\qqwhost.exe virussign.com_98770af63def2b3ac13d412f41811190.exe File opened for modification C:\Windows\Debug\qqwhost.exe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 qqwhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz qqwhost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1224 wrote to memory of 1104 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe 28 PID 1224 wrote to memory of 1104 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe 28 PID 1224 wrote to memory of 1104 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe 28 PID 1224 wrote to memory of 1104 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe 28 PID 1224 wrote to memory of 1332 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe 31 PID 1224 wrote to memory of 1332 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe 31 PID 1224 wrote to memory of 1332 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe 31 PID 1224 wrote to memory of 1332 1224 virussign.com_98770af63def2b3ac13d412f41811190.exe 31 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 1104 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\virussign.com_98770af63def2b3ac13d412f41811190.exe"C:\Users\Admin\AppData\Local\Temp\virussign.com_98770af63def2b3ac13d412f41811190.exe"1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\qqwhost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:1104
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\VIRUSS~1.EXE > nul2⤵
- Deletes itself
PID:1332
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C:\Windows\Debug\qqwhost.exeC:\Windows\Debug\qqwhost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2884
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
35KB
MD5b54a0bb3f355fc4d632fd804f0dd3988
SHA16fe72ea7b446e16828586c4641283e1428871517
SHA256c4bf1be5b2c3e74cd488e0b5020dd7c0d66972dc0f4b18df9d7d009d0e6db756
SHA51271547ff5aeaba4cbb8560b66400fee2fefc4c179239be245137b1d5bf6b94de4b898340e10f36f32449e7762ff247c83f1a944a0d506343f4933eb3386704a88