Analysis
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max time kernel
145s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
12-06-2024 13:50
Static task
static1
Behavioral task
behavioral1
Sample
a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe
Resource
win10v2004-20240611-en
General
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Target
a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe
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Size
1.1MB
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MD5
a0e2d36c6dc3a660509580a4c43cfd34
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SHA1
124d896477e98621ddcba0d75120016091fc866b
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SHA256
a1b7b3c80c80febd8d6b1358cba8492a540234215a2bfbe0dc7d49683e6fac44
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SHA512
ddcc10920dd7c2c90b1d0ec653158f324d74b70be9970d50283186bbadbfbb7b80876040cb32cc9db2ac70be54848058e196607a1ee522d7920771a63f681664
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SSDEEP
24576:KEtl9mRda1ISGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvb:BEs1lp1tRaMMMMM2MMMMMS5W/j
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
HelpMe.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe" HelpMe.exe -
Renames multiple (93) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops startup file 2 IoCs
Processes:
HelpMe.exedescription ioc process File created 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 HelpMe.exe -
Executes dropped EXE 1 IoCs
Processes:
HelpMe.exepid process 1680 HelpMe.exe -
Loads dropped DLL 2 IoCs
Processes:
a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exepid process 2384 a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe 2384 a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
HelpMe.exedescription ioc process File opened (read-only) \??\I: HelpMe.exe File opened (read-only) \??\N: HelpMe.exe File opened (read-only) \??\W: HelpMe.exe File opened (read-only) \??\A: HelpMe.exe File opened (read-only) \??\G: HelpMe.exe File opened (read-only) \??\M: HelpMe.exe File opened (read-only) \??\Q: HelpMe.exe File opened (read-only) \??\R: HelpMe.exe File opened (read-only) \??\Y: HelpMe.exe File opened (read-only) \??\Z: HelpMe.exe File opened (read-only) \??\H: HelpMe.exe File opened (read-only) \??\J: HelpMe.exe File opened (read-only) \??\S: HelpMe.exe File opened (read-only) \??\U: HelpMe.exe File opened (read-only) \??\K: HelpMe.exe File opened (read-only) \??\P: HelpMe.exe File opened (read-only) \??\L: HelpMe.exe File opened (read-only) \??\O: HelpMe.exe File opened (read-only) \??\T: HelpMe.exe File opened (read-only) \??\V: HelpMe.exe File opened (read-only) \??\X: HelpMe.exe File opened (read-only) \??\B: HelpMe.exe File opened (read-only) \??\E: HelpMe.exe -
Drops autorun.inf file 1 TTPs 2 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
Processes:
HelpMe.exedescription ioc process File opened for modification F:\AUTORUN.INF HelpMe.exe File opened for modification C:\AUTORUN.INF HelpMe.exe -
Drops file in System32 directory 6 IoCs
Processes:
a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exeHelpMe.exedescription ioc process File opened for modification C:\Windows\SysWOW64\notepad.exe.exe a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe File created C:\Windows\SysWOW64\HelpMe.exe a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe File created C:\Windows\SysWOW64\HelpMe.exe HelpMe.exe File opened for modification C:\Windows\SysWOW64\HelpMe.exe HelpMe.exe File created C:\Windows\SysWOW64\notepad.exe.exe HelpMe.exe File opened for modification C:\Windows\SysWOW64\HelpMe.exe a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe -
Drops file in Program Files directory 2 IoCs
Processes:
HelpMe.exea0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exedescription ioc process File created C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe HelpMe.exe File opened for modification C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
HelpMe.exea0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exepid process 1680 HelpMe.exe 2384 a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exedescription pid process target process PID 2384 wrote to memory of 1680 2384 a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe HelpMe.exe PID 2384 wrote to memory of 1680 2384 a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe HelpMe.exe PID 2384 wrote to memory of 1680 2384 a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe HelpMe.exe PID 2384 wrote to memory of 1680 2384 a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe HelpMe.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2384 -
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
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:1680
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
901KB
MD5fa19141673ee216aaf0da50afedbea14
SHA163e1a54989db59048168a1f2d29ece121836fd49
SHA256289d4943e45d6271caec0f9f6fc2e38181a645e24a4048a06fb9bde0c9744ab1
SHA51284ddf2fd3b16eb54e4dbf16a5f876070c152c628d1b43b0d702485514a0d3746de4dfbf1b2ea5112475c9ae1bbc064bfbdd707daac3fd1bc6061f1a671413856
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Filesize
1.8MB
MD5d9b048fdefad444456d175cd6e55be2d
SHA16afb6560fbd9d3985ee8ba5ff98b87b55b9f8da2
SHA256921d549f06b6e6a696873ff84517eea15254305fa3a0a7aaf8d1320ebba3982c
SHA512da6c64b6f1cfe4358ffab69ee52b2e95ab82545e0eee46e6a620763263eff779089b9ada7b9f4fdbe4332651b43800d0223a51fd8ad0277f78dbe3d41b14037f
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Filesize
950B
MD526717fccee3ef2eb47a48dfdba879cf6
SHA1f72edbad5ae0b7a5b4dbffd42bb03d8aa6e26304
SHA2568cf692e99520e2b19e8d57207d3075881dad46fdf7da4146af16145ae63173d2
SHA512e08ba9422b42c74e8514c1e73ae37979ee4f3fe436ef8bc6622c0599565658093437647e6656485ce1b9d4a11e53485e54758f5f35e036a3c18972d0f1a4713e
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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Filesize
145B
MD5ca13857b2fd3895a39f09d9dde3cca97
SHA18b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0
SHA256cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae
SHA51255e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47
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Filesize
901KB
MD596c6cd4e81790949780f17a02975e2d0
SHA1c8090a2cc130d772dbf88f6f1bc3bd19eba5a2ec
SHA2560b09876b0b50fb10766ad32c2c13bac101f59c58c347a80459ef8aff86e84aa2
SHA512664cd14591a39635661f1b16e11ef0f98f6430e689ac1e2e3ff057c8706512f7cf6ac6137c7b074cfaeacce3a162c797b1845cfc90ffd3777c1127af49ce5abd