Analysis
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max time kernel
120s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20250410-en -
resource tags
arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system -
submitted
13/04/2025, 12:01
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe
Resource
win10v2004-20250410-en
General
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Target
JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe
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Size
1.1MB
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MD5
b4974fdca95fac2177e8b038bc3d3350
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SHA1
10319d8a96e6f57b5d85f4999b18ee9474440c59
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SHA256
5517094e4ca27bef508b07711f4227ba062834762cc132861c2fd8cbb4e67913
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SHA512
11dff51591340a0997b90b1c18e55abb4ad7c6323f7782c8dd77a938f608a7bbe3bf0db44f033dfbed826c9d97a52aa2eed13a093a062951b763dc0f8fe9375d
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SSDEEP
24576:Xk/ATGmxyYWKDqX9A0A6GwQR1v85PMrQdukK+fKk37nl6VC7YS:0oTGmxy2iG/v85UrYukzfKk
Malware Config
Signatures
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Ardamax family
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Ardamax main executable 1 IoCs
resource yara_rule behavioral1/files/0x000a0000000240aa-8.dat family_ardamax -
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-1-5-21-2645532622-3298555945-705856666-1000\Control Panel\International\Geo\Nation JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe -
Executes dropped EXE 2 IoCs
pid Process 1124 IRH.exe 1916 IRH.exe -
Loads dropped DLL 2 IoCs
pid Process 1124 IRH.exe 1916 IRH.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\IRH Start = "C:\\Windows\\SysWOW64\\INIARW\\IRH.exe" IRH.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\INIARW\IRH.002 JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe File created C:\Windows\SysWOW64\INIARW\AKV.exe JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe File created C:\Windows\SysWOW64\INIARW\IRH.exe JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe File opened for modification C:\Windows\SysWOW64\INIARW\ IRH.exe File created C:\Windows\SysWOW64\INIARW\IRH.004 JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe File created C:\Windows\SysWOW64\INIARW\IRH.001 JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe -
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 3 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 JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IRH.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IRH.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 1124 IRH.exe Token: SeIncBasePriorityPrivilege 1124 IRH.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1124 IRH.exe 1124 IRH.exe 1124 IRH.exe 1124 IRH.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5996 wrote to memory of 1124 5996 JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe 87 PID 5996 wrote to memory of 1124 5996 JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe 87 PID 5996 wrote to memory of 1124 5996 JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe 87 PID 1608 wrote to memory of 1916 1608 cmd.exe 91 PID 1608 wrote to memory of 1916 1608 cmd.exe 91 PID 1608 wrote to memory of 1916 1608 cmd.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b4974fdca95fac2177e8b038bc3d3350.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5996 -
C:\Windows\SysWOW64\INIARW\IRH.exe"C:\Windows\system32\INIARW\IRH.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1124
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c C:\Windows\SysWOW64\INIARW\IRH.exe1⤵
- Suspicious use of WriteProcessMemory
PID:1608 -
C:\Windows\SysWOW64\INIARW\IRH.exeC:\Windows\SysWOW64\INIARW\IRH.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1916
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
463KB
MD5eb916da4abe4ff314662089013c8f832
SHA11e7e611cc6922a2851bcf135806ab51cdb499efa
SHA25696af80e7ba0f3997d59ebcb5ecef619f980d71ca29113e2cd2f2e8adcdea3061
SHA512d0dbe1d1612982b9cd2a3ed3cbd3e3b5be49237f580f91d5e5d5b6d20ed4dc0babb69a666c19bf4e0f10776a43b9b1dcda91a4cd381ce3705b1795ef9d731c8b
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Filesize
61KB
MD5425ff37c76030ca0eb60321eedd4afdd
SHA17dde5e9ce5c4057d3db149f323fa43ed29d90e09
SHA25670b00b09ae76a7ecfd6680ab22df546b17826755087c069fc87d14895e1a4e24
SHA512ef5ff97c0d682b6155eff8f92dace1789cf01ca8bca55af1c1d0f2243b5e18bc12a657bb2bb12601b51ef9e1b942f02feb8462644da291fd1b2239c34ef2b59b
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Filesize
43KB
MD512fb4f589942682a478b7c7881dfcba2
SHA1a3d490c6cda965708a1ff6a0dc4e88037e0d6336
SHA2564de0c277800ae36b85a11ed9765f732a73578d4dce053ff7179f96ab776fb60d
SHA512dd1c6a4ea5bc9698701ec941c4e90fe8dfb0993dc321edc052d1a80cc49bc46be665a85ec678876e698de60cda5dbf1d6279742a16d648f9d18e642a3ea33ddd
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Filesize
1KB
MD590d1d9e1df039f4381009b8252e3bacf
SHA1438c1e9613d1146fd33e2e599993e211d138145e
SHA256e50e650c099cf2e48bad5f651caebfe42f2165b3c28e95ea6cec03d17d3f9e05
SHA5122d007a2c4a374377053a25c974c633c1d242fdc182b24ddf9ff5ca1b10a69397eab6ef3ee2f1c09b9404d149703b3ffc12141180f014d97caa3cc275dc0bfd75
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Filesize
1.5MB
MD5f8530f0dfe90c7c1e20239b0a7643041
SHA13e0208ab84b8444a69c8d62ad0b81c4186395802
SHA256734439c4049ae1a832b4cc5c8d227112106406945d1a7cbb355e11a3f5e356c4
SHA5125cb01517938789e006e00d69729ae7d73ad480f1ae17a80059bf81ee5d9cebb1263a35732c84f03d742684a650b116b13e6731ca80b0b9cdb3908e5588649399