ramnit | 1b0b4e02e3a671fafd36a6440e9bbf08cc2fb9cdf3949cfc0d0391a058d92f6b

General

Target

2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe
Size

4.2MB
MD5

a71770683f5474465047295f01644386
SHA1

4f6415b644eacd0a642d90ef1f0ef367009db337
SHA256

1b0b4e02e3a671fafd36a6440e9bbf08cc2fb9cdf3949cfc0d0391a058d92f6b
SHA512

45ceb8c2b99fcfbebbb2c05751afd9754048d16d5a006a358ddfcf09e716957d3df9d2ea4c1bbf61c5ec54dab94ece6e19d84d9cfe18d8be5d4ce3101b4f6578
SSDEEP

98304:3MX6JVkHSdJ+dw32m1ZcAE/KWQ4SKHdngNvfn7K5:323U32Oy44SKqN7

Score

10^/10

ramnit banker discovery 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
2900	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe
5024	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2900-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000c000000023b10-3.dat	upx
behavioral2/memory/2900-10-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/5024-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/5024-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/5024-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px881C.tmp	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.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 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1677747890"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156767"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{8F96DB7D-D612-11EF-B9D5-E24E87F0D14E} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444021042"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156767"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1684935532"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
5024	DesktopLayer.exe
5024	DesktopLayer.exe
5024	DesktopLayer.exe
5024	DesktopLayer.exe
5024	DesktopLayer.exe
5024	DesktopLayer.exe
5024	DesktopLayer.exe
5024	DesktopLayer.exe
4880	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe
4880	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4280	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4880	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe
4880	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe
4280	iexplore.exe
4280	iexplore.exe
5108	IEXPLORE.EXE
5108	IEXPLORE.EXE
5108	IEXPLORE.EXE
5108	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 2900	4880	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe	83
PID 4880 wrote to memory of 2900	4880	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe	83
PID 4880 wrote to memory of 2900	4880	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe	83
PID 2900 wrote to memory of 5024	2900	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe	84
PID 2900 wrote to memory of 5024	2900	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe	84
PID 2900 wrote to memory of 5024	2900	2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe	84
PID 5024 wrote to memory of 4280	5024	DesktopLayer.exe	85
PID 5024 wrote to memory of 4280	5024	DesktopLayer.exe	85
PID 4280 wrote to memory of 5108	4280	iexplore.exe	86
PID 4280 wrote to memory of 5108	4280	iexplore.exe	86
PID 4280 wrote to memory of 5108	4280	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revil.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Users\Admin\AppData\Local\Temp\2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe
  C:\Users\Admin\AppData\Local\Temp\2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2900
- - 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:5024
  - - 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:4280
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4280 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:5108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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
4363732b094e06ea613be8ca268f5460

SHA1
ad4d6ca8f2362a24800a1f752f99d7c55c0ce862

SHA256
0bc53d2e4ba5d43da581d2eda05c56f2c3a93407b3d35c8d630507c0fb81a21d

SHA512
b5c075fbcbead37980c28e3e8745339445d1e5bc4c873ca70995012c72f09dd1f4cd315faf02589be84fd6b7683673836df8d228cd94e6e6c3e3659081af4c99

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

Filesize
404B

MD5
508460ee5ee3360ca3114f1d0c1f409b

SHA1
e9c845f71d4cc5c1d960e453e5fafaede008af33

SHA256
d7fcbf4a6c61d1f83a367a08ab36e489198fb019b5b03b74af8eb5941d4ce853

SHA512
2cea98ec8888bba26676ca5a74f1dfeaba70c60ef033d7925beeeec83406543447703fe9fdf05b6355d3759b0bd0a553a99e811cb1640b63431535c31852c495

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\2025-01-19_a71770683f5474465047295f01644386_mafia_ramnit_revilSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\3dm\load.html

Filesize
3KB

MD5
c2446faa12434d5575720fab791488a1

SHA1
145076bdeedeb8b9c725cee1830d721f09187671

SHA256
925d2bfd8f63a8d8da6e44df3fc0fbde634aa6d5ead6e0f3ded54d59578b0367

SHA512
36fb27ddcb9e2fb74d2b5b5f3de5d8879a155c54fbf0e714bd07461f8cb1d5513d98846b3c3ef239f63ee4594d6edf18d8842cfa391422977b622e87c445d9b4

Download Submit
memory/2900-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-6-0x0000000000690000-0x000000000069F000-memory.dmp

Filesize
60KB

Download
memory/2900-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4880-18-0x00000000001B0000-0x00000000005F9000-memory.dmp

Filesize
4.3MB

Download
memory/4880-0-0x00000000001B0000-0x00000000005F9000-memory.dmp

Filesize
4.3MB

Download
memory/5024-15-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/5024-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5024-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5024-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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