Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22-10-2024 15:09
Static task
static1
Behavioral task
behavioral1
Sample
z55PleasefindattachedtheRFQinquiry.exe
Resource
win7-20241010-en
General
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Target
z55PleasefindattachedtheRFQinquiry.exe
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Size
2.8MB
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MD5
ee24e64f34a5580c5c9ee2cebefc312d
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SHA1
3a8a93cd79b36dedfd0827f268d210574c66f9bb
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SHA256
a42b85487137aef36ca9eb586988d2ff2181425c1ca8b0deaef5c30e4b6503bc
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SHA512
8d37331a15367009fa56cbf03c0e66730aea15fc5b437fe4f8070d9b75f12d102a424196a033cdd5ea40abc1aa5d205dfaf44f4fd49008921e22f01a59122321
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SSDEEP
12288:QeQU766QpZ72faJZxZtohjS902gSo+nknSsi1JqWlVHQECjzW:QeZnQpXJbD4IYus+J1/NC2
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.financ-fire.com - Port:
587 - Username:
[email protected] - Password:
W6otxNGOdwF9 - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/4436-4-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" z55PleasefindattachedtheRFQinquiry.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\z55PleasefindattachedtheRFQinquiry.exe = "0" z55PleasefindattachedtheRFQinquiry.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths z55PleasefindattachedtheRFQinquiry.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 436 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation z55PleasefindattachedtheRFQinquiry.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\z55PleasefindattachedtheRFQinquiry.exe = "0" z55PleasefindattachedtheRFQinquiry.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths z55PleasefindattachedtheRFQinquiry.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions z55PleasefindattachedtheRFQinquiry.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" z55PleasefindattachedtheRFQinquiry.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA z55PleasefindattachedtheRFQinquiry.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 16 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4028 set thread context of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe installutil.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 4456 4436 WerFault.exe 88 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language installutil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 436 powershell.exe 436 powershell.exe 4436 installutil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4028 z55PleasefindattachedtheRFQinquiry.exe Token: SeDebugPrivilege 436 powershell.exe Token: SeDebugPrivilege 4436 installutil.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 4028 wrote to memory of 436 4028 z55PleasefindattachedtheRFQinquiry.exe 87 PID 4028 wrote to memory of 436 4028 z55PleasefindattachedtheRFQinquiry.exe 87 PID 4028 wrote to memory of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 PID 4028 wrote to memory of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 PID 4028 wrote to memory of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 PID 4028 wrote to memory of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 PID 4028 wrote to memory of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 PID 4028 wrote to memory of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 PID 4028 wrote to memory of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 PID 4028 wrote to memory of 4436 4028 z55PleasefindattachedtheRFQinquiry.exe 88 PID 4028 wrote to memory of 4648 4028 z55PleasefindattachedtheRFQinquiry.exe 90 PID 4028 wrote to memory of 4648 4028 z55PleasefindattachedtheRFQinquiry.exe 90 PID 4028 wrote to memory of 4648 4028 z55PleasefindattachedtheRFQinquiry.exe 90 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" z55PleasefindattachedtheRFQinquiry.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\z55PleasefindattachedtheRFQinquiry.exe"C:\Users\Admin\AppData\Local\Temp\z55PleasefindattachedtheRFQinquiry.exe"1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4028 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\z55PleasefindattachedtheRFQinquiry.exe" -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:436
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"2⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4436 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4436 -s 19603⤵
- Program crash
PID:4456
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"2⤵PID:4648
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4436 -ip 44361⤵PID:4876
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
4Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82