Analysis
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max time kernel
146s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
17-06-2024 04:20
Static task
static1
Behavioral task
behavioral1
Sample
b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe
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Size
958KB
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MD5
b6b8b4a3bc16c2f4b558ed1e4516c944
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SHA1
9952e8cc06cc8509fa9b2b0d2708c46a7dcb5aa8
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SHA256
8741ccbf5c4054699732d5414e86346a851aeecf954900a1c9bf614f11af4230
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SHA512
0344cdf8cd666595a7fb16dee0bbf6dd80fd3e849d0bffaaa67b0ae43013598f920a1bd6916f05b56d07ab5a178c33606b488d03f91a3a611609bdf627a5d49b
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SSDEEP
24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvT:oEs1hV
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe" b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe" HelpMe.exe -
Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops startup file 3 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk HelpMe.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 3032 HelpMe.exe -
Loads dropped DLL 2 IoCs
pid Process 2576 b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe 2576 b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\K: HelpMe.exe File opened (read-only) \??\O: HelpMe.exe File opened (read-only) \??\W: HelpMe.exe File opened (read-only) \??\E: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\I: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\B: HelpMe.exe File opened (read-only) \??\R: HelpMe.exe File opened (read-only) \??\T: HelpMe.exe File opened (read-only) \??\B: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\L: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\R: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\T: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\X: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\I: HelpMe.exe File opened (read-only) \??\S: HelpMe.exe File opened (read-only) \??\Y: HelpMe.exe File opened (read-only) \??\G: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\J: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\M: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\V: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\W: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\Q: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\Y: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\G: HelpMe.exe File opened (read-only) \??\J: HelpMe.exe File opened (read-only) \??\Z: HelpMe.exe File opened (read-only) \??\H: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\K: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\P: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\E: HelpMe.exe File opened (read-only) \??\H: HelpMe.exe File opened (read-only) \??\N: HelpMe.exe File opened (read-only) \??\U: HelpMe.exe File opened (read-only) \??\S: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\U: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\Z: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\A: HelpMe.exe File opened (read-only) \??\L: HelpMe.exe File opened (read-only) \??\V: HelpMe.exe File opened (read-only) \??\X: HelpMe.exe File opened (read-only) \??\A: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\N: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\O: b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened (read-only) \??\M: HelpMe.exe File opened (read-only) \??\P: HelpMe.exe File opened (read-only) \??\Q: HelpMe.exe -
Drops autorun.inf file 1 TTPs 3 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification F:\AUTORUN.INF b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened for modification C:\AUTORUN.INF b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File opened for modification F:\AUTORUN.INF HelpMe.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\HelpMe.exe b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe File created C:\Windows\SysWOW64\HelpMe.exe HelpMe.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2576 wrote to memory of 3032 2576 b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe 28 PID 2576 wrote to memory of 3032 2576 b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe 28 PID 2576 wrote to memory of 3032 2576 b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe 28 PID 2576 wrote to memory of 3032 2576 b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2576 -
C:\Windows\SysWOW64\HelpMe.exeC:\Windows\system32\HelpMe.exe2⤵
- Modifies WinLogon for persistence
- Drops startup file
- Executes dropped EXE
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
PID:3032
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
959KB
MD5a41d0325347e1216b6bcf69f4d7c80c5
SHA11605087728bc044400f238f74a454f7aca4427b5
SHA2568fa687d9f15fc91a5ea1cde367b3116da296bf995a06d8cd4f1879dd27d587b3
SHA5125c24293f730465ad18e472597dc26aebcf3bbad076bc05a58ea4df5bea90159a210fe5aaddbb6288e6c4089f0e78befd8235b2a54f571c630d355d4bfba891d7
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Filesize
1KB
MD5ed5a8222d853afdc411e846bcb462678
SHA1f3039025458e013e1303d9f6074bb458551feec3
SHA25612a5f1f044f9dbcbb34c8add13786b4c9ff745ef40ae4c5578e75289508e7070
SHA512b6cc698d8bd3cb0c2fa69e78076b1e9193bda3a1ee5925f128bf98672924cbb354be6f93c27a0eae57812410fbeca0d32b19fe6553737bdc533a3343bc6cc572
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Filesize
946B
MD5d067b426efa482dce37bca3260072fbd
SHA142337b172088c36eb70321c1169f9f19413bface
SHA2569d2ffea80565ef6199ad01b5417f2eab3f40046a81e735ca11378a4f35c72431
SHA512c88a1cf6d869bccbcb9d9e329400a3464cb5abf7661bb90543daffc6f11a2d26b478e338b5710fd29a85ee3d26e7b407da9b468afe171bbda7bdd4a41f96fca7
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Filesize
145B
MD5ca13857b2fd3895a39f09d9dde3cca97
SHA18b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0
SHA256cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae
SHA51255e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47
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Filesize
958KB
MD5b6b8b4a3bc16c2f4b558ed1e4516c944
SHA19952e8cc06cc8509fa9b2b0d2708c46a7dcb5aa8
SHA2568741ccbf5c4054699732d5414e86346a851aeecf954900a1c9bf614f11af4230
SHA5120344cdf8cd666595a7fb16dee0bbf6dd80fd3e849d0bffaaa67b0ae43013598f920a1bd6916f05b56d07ab5a178c33606b488d03f91a3a611609bdf627a5d49b
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Filesize
957KB
MD5129dfca94187120f825c592892e52f6c
SHA18dff7e86e0d128c2339f7dbdedab8f5609e34dab
SHA25678f41d1ba212c04adfcf990c352036dc5f46a27779236b85d85c54b4398d6ce5
SHA512b5db05cde57313476eaa21bd7876120db643d5866ab7c83d9b1c19a416c77e27451da318960a533a7874ac18128323e8b22bd8cb31d5be0de1c10319f32c0d82