ramnit | 1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281

General

Target

1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281.exe
Size

452KB
MD5

4a41bc9564001c2223e94a9bc2f80bc0
SHA1

86106c6b2bfb27e716f7664f920c64f9389b6e79
SHA256

1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281
SHA512

a8ec458acedcad5e55a87a5200f4e4222d502b8b83ebf2938a23498e1e4df81b073051439d0b67ecf31e6081c1ff91aea742e105c9363ecdeae42ffb84472716
SSDEEP

12288:TtcZiSnQDRwnzDhJmFur16KAZM+BPfTX:TUnUo+up6KAZFBTX

Score

10^/10

ramnit banker 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

Executes dropped EXE 2 IoCs

pid	Process
2916	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe
440	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000022e07-133.dat	upx
behavioral2/files/0x000a000000022e07-134.dat	upx
behavioral2/files/0x000c000000022e2c-136.dat	upx
behavioral2/files/0x000c000000022e2c-139.dat	upx
behavioral2/memory/2916-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/440-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px688.tmp	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 18 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373185358"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{5EAB75A5-51D3-11ED-89AC-72E07057041D} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
440	DesktopLayer.exe
440	DesktopLayer.exe
440	DesktopLayer.exe
440	DesktopLayer.exe
440	DesktopLayer.exe
440	DesktopLayer.exe
440	DesktopLayer.exe
440	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2100	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2100	iexplore.exe
2100	iexplore.exe
3508	IEXPLORE.EXE
3508	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 2916	3444	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281.exe	82
PID 3444 wrote to memory of 2916	3444	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281.exe	82
PID 3444 wrote to memory of 2916	3444	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281.exe	82
PID 2916 wrote to memory of 440	2916	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe	83
PID 2916 wrote to memory of 440	2916	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe	83
PID 2916 wrote to memory of 440	2916	1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe	83
PID 440 wrote to memory of 2100	440	DesktopLayer.exe	84
PID 440 wrote to memory of 2100	440	DesktopLayer.exe	84
PID 2100 wrote to memory of 3508	2100	iexplore.exe	87
PID 2100 wrote to memory of 3508	2100	iexplore.exe	87
PID 2100 wrote to memory of 3508	2100	iexplore.exe	87

C:\Users\Admin\AppData\Local\Temp\1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281.exe
"C:\Users\Admin\AppData\Local\Temp\1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Users\Admin\AppData\Local\Temp\1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe
  C:\Users\Admin\AppData\Local\Temp\1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:440
  - - 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:2100
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2100 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\1160a39ac9d34e4c1ad1cf2904bb95cb9a4d3bfc6838a5ea4f8d376de8d87281Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/440-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/440-142-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2916-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2916-140-0x0000000002030000-0x000000000203F000-memory.dmp

Filesize
60KB

Download
memory/3444-137-0x0000000000D70000-0x0000000000DF6000-memory.dmp

Filesize
536KB

Download
memory/3444-143-0x0000000000D70000-0x0000000000DF6000-memory.dmp

Filesize
536KB

Download

Analysis

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