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Analysis
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max time kernel
119s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
16/03/2025, 10:20
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe
Resource
win10v2004-20250314-en
General
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Target
JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe
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Size
489KB
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MD5
79dd0667f51035f1b8322d10acf1688b
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SHA1
fe21c49313ad7dacdca94211eb635540551b4f28
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SHA256
fb30f6f2adef10ea9f6806afb731977b7d6c67dfddd891eab99a0a8ad3048751
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SHA512
921eefd772ef2d1d3553db57174cf66cbcc6bbe9f745cd68fea6e0a9683ffd860e0460a3e6037dbe4848051161631d35dea1a6ea88ce0fb195fa5e26d140a23e
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SSDEEP
12288:OVW0BLp7vXRxcBAlhQaVYZiEk2NZjEpPceXQK:OVJLp7vXRqBAlhQxYLIqqK
Malware Config
Signatures
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ISR Stealer
ISR Stealer is a modified version of Hackhound Stealer written in visual basic.
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ISR Stealer payload 4 IoCs
resource yara_rule behavioral1/memory/1508-23-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1508-20-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1508-41-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1508-61-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
Isrstealer family
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Detected Nirsoft tools 2 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral1/memory/2964-57-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/2964-59-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/2964-57-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/2964-59-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Executes dropped EXE 2 IoCs
pid Process 2440 tmp7926.tmp.exe 3064 tmp7926.tmp.exe -
Loads dropped DLL 2 IoCs
pid Process 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\1220226172 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp7926.tmp.exe\"" tmp7926.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\1440504933 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp7926.tmp.exe\"" tmp7926.tmp.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2208 set thread context of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 1508 set thread context of 2764 1508 vbc.exe 33 PID 1508 set thread context of 2964 1508 vbc.exe 35 -
resource yara_rule behavioral1/memory/2764-32-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2764-31-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2764-30-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2764-35-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2964-55-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/2964-56-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/2964-57-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/2964-59-0x0000000000400000-0x000000000041F000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 6 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 tmp7926.tmp.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmp7926.tmp.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe Token: SeDebugPrivilege 2440 tmp7926.tmp.exe Token: SeDebugPrivilege 3064 tmp7926.tmp.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1508 vbc.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 2208 wrote to memory of 2440 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 30 PID 2208 wrote to memory of 2440 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 30 PID 2208 wrote to memory of 2440 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 30 PID 2208 wrote to memory of 2440 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 30 PID 2208 wrote to memory of 3064 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 31 PID 2208 wrote to memory of 3064 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 31 PID 2208 wrote to memory of 3064 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 31 PID 2208 wrote to memory of 3064 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 31 PID 2208 wrote to memory of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 2208 wrote to memory of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 2208 wrote to memory of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 2208 wrote to memory of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 2208 wrote to memory of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 2208 wrote to memory of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 2208 wrote to memory of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 2208 wrote to memory of 1508 2208 JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe 32 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2764 1508 vbc.exe 33 PID 1508 wrote to memory of 2964 1508 vbc.exe 35 PID 1508 wrote to memory of 2964 1508 vbc.exe 35 PID 1508 wrote to memory of 2964 1508 vbc.exe 35 PID 1508 wrote to memory of 2964 1508 vbc.exe 35 PID 1508 wrote to memory of 2964 1508 vbc.exe 35 PID 1508 wrote to memory of 2964 1508 vbc.exe 35 PID 1508 wrote to memory of 2964 1508 vbc.exe 35 PID 1508 wrote to memory of 2964 1508 vbc.exe 35 PID 1508 wrote to memory of 2964 1508 vbc.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2208 -
C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe" -p2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2440
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C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe" -p2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3064
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\\vbc.exe2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe/scomma "C:\Users\Admin\AppData\Local\Temp\2WBL59CnMX.ini"3⤵
- System Location Discovery: System Language Discovery
PID:2764
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe/scomma "C:\Users\Admin\AppData\Local\Temp\ojYMHrppF5.ini"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:2964
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5B
MD5d1ea279fb5559c020a1b4137dc4de237
SHA1db6f8988af46b56216a6f0daf95ab8c9bdb57400
SHA256fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba
SHA512720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3
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Filesize
489KB
MD579dd0667f51035f1b8322d10acf1688b
SHA1fe21c49313ad7dacdca94211eb635540551b4f28
SHA256fb30f6f2adef10ea9f6806afb731977b7d6c67dfddd891eab99a0a8ad3048751
SHA512921eefd772ef2d1d3553db57174cf66cbcc6bbe9f745cd68fea6e0a9683ffd860e0460a3e6037dbe4848051161631d35dea1a6ea88ce0fb195fa5e26d140a23e