ramnit | fef4bd80ff48368dc8244e22f4c561a46dc484e5841178b674d58a6b3ddb54ec

Analysis

max time kernel
94s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2025, 03:21

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General

Target

JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe
Size

544KB
MD5

4552e1e6a2a8fbd737699805fc4920a0
SHA1

81e19a122790dfb7d042d316ab5cdbbc7b0a13f0
SHA256

fef4bd80ff48368dc8244e22f4c561a46dc484e5841178b674d58a6b3ddb54ec
SHA512

7ba323b9bb903eacaf312abbb2956203ea42d4020dd6f7ca6d63b2bffe874bf4c25f5cd386d105c09e5211f3e660ecfdb6d2bffb0f7cb2145563bbda1f971d29
SSDEEP

12288:r8zo7CIXN/HRcM+2CGvpAwsnXOQo7um9G:r8zexHRcMbCGvq7OQoqm

Score

10^/10

ramnit banker discovery persistence spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
544	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe
3748	DesktopLayer.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Express = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe"	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000c000000023b24-3.dat	upx
behavioral2/memory/544-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/544-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3748-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3748-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px781E.tmp	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153148"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1133714477"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153148"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1130745747"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442466639"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1130745747"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153148"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6EFEA6A3-C7EF-11EF-9361-DA61A5E71E4E} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3748	DesktopLayer.exe
3748	DesktopLayer.exe
3748	DesktopLayer.exe
3748	DesktopLayer.exe
3748	DesktopLayer.exe
3748	DesktopLayer.exe
3748	DesktopLayer.exe
3748	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2548	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe
316	iexplore.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2548	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2548	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe
2548	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe
316	iexplore.exe
316	iexplore.exe
1864	IEXPLORE.EXE
1864	IEXPLORE.EXE
1864	IEXPLORE.EXE
1864	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 544	2548	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe	82
PID 2548 wrote to memory of 544	2548	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe	82
PID 2548 wrote to memory of 544	2548	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe	82
PID 544 wrote to memory of 3748	544	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe	83
PID 544 wrote to memory of 3748	544	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe	83
PID 544 wrote to memory of 3748	544	JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe	83
PID 3748 wrote to memory of 316	3748	DesktopLayer.exe	84
PID 3748 wrote to memory of 316	3748	DesktopLayer.exe	84
PID 316 wrote to memory of 1864	316	iexplore.exe	85
PID 316 wrote to memory of 1864	316	iexplore.exe	85
PID 316 wrote to memory of 1864	316	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3748
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:316
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:316 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
febff5e5b64433316ee5f116c5c14309

SHA1
55a533777edeed0d18304f073d59d5ca1e5c7737

SHA256
888dd735b3cf97e714243c7ecf44064128c4a97452b90ebbc66e317a113ef9a4

SHA512
cbadeca5bbd2528b4af7ad6d053483adac27db83bfcd8b75312a5aa4b09302f729b67a04bbb9af840cb3abd78ec668b5a6c8746685ba0f15780b5e0ea3dd88d8

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
defff88b79324d5fb891ada602a008ee

SHA1
994b715e109048f54698faad97b2b70ebffeb00b

SHA256
a56110f07f182733f6d28a3740f2cbe878823d2d11be3ae5e7b7a0f30a64f7a2

SHA512
1ee35b9d7dc33482f972356b22cbc0ac20a480232aa704c76084880ca815fc52b646df02ccdccb3a0cede419ded883ef17b30a7accdc4e30c59efd37d986e9a9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4552e1e6a2a8fbd737699805fc4920a0Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/544-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/544-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/544-7-0x0000000002040000-0x000000000204F000-memory.dmp

Filesize
60KB

Download
memory/2548-0-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2548-17-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/3748-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3748-13-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/3748-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download