ramnit | 52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1

General

Target

52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1.exe
Size

892KB
MD5

0a5b8ea6b996f9908d635287025af470
SHA1

f4f16cab88300295c57ae3a2a8256550bb096755
SHA256

52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1
SHA512

5c3c9b2fa88b0e73f95a2afbe7333b56cf713e98e5e6ca4e2179cff135518bad7cd62d5fc4c3393da37e503052ccdeef4f0ac14eaa5737ba2bd656e866d8c6c7
SSDEEP

24576:aQRvNENgL3cxDgUEesiHYo5OrP5+KtK930UZVTz6t:pEjVgUEesiHYo5OrP5+KtK930UZo

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
4772	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe
2644	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023149-134.dat	upx
behavioral2/files/0x0008000000023149-135.dat	upx
behavioral2/files/0x000900000002314c-137.dat	upx
behavioral2/memory/4772-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000900000002314c-139.dat	upx
behavioral2/memory/2644-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px5D96.tmp	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe

Modifies Internet Explorer settings 1 TTPs 13 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375193810"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{DFFBBCD7-6993-11ED-919F-7218A89707DE} = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2644	DesktopLayer.exe
2644	DesktopLayer.exe
2644	DesktopLayer.exe
2644	DesktopLayer.exe
2644	DesktopLayer.exe
2644	DesktopLayer.exe
2644	DesktopLayer.exe
2644	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1472	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1472	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1472	iexplore.exe
1472	iexplore.exe
3384	IEXPLORE.EXE
3384	IEXPLORE.EXE
3384	IEXPLORE.EXE
3384	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 4772	4172	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1.exe	83
PID 4172 wrote to memory of 4772	4172	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1.exe	83
PID 4172 wrote to memory of 4772	4172	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1.exe	83
PID 4772 wrote to memory of 2644	4772	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe	84
PID 4772 wrote to memory of 2644	4772	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe	84
PID 4772 wrote to memory of 2644	4772	52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe	84
PID 2644 wrote to memory of 1472	2644	DesktopLayer.exe	85
PID 2644 wrote to memory of 1472	2644	DesktopLayer.exe	85
PID 1472 wrote to memory of 3384	1472	iexplore.exe	86
PID 1472 wrote to memory of 3384	1472	iexplore.exe	86
PID 1472 wrote to memory of 3384	1472	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1.exe
"C:\Users\Admin\AppData\Local\Temp\52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4172
- C:\Users\Admin\AppData\Local\Temp\52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe
  C:\Users\Admin\AppData\Local\Temp\52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4772
- - 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:2644
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1472
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1472 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3384

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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\52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\52a9a9f2d6f82ca49fea92eb7c323494b66b9fa73d0c50eb7397cce33a4932e1Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/2644-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4172-132-0x0000000000400000-0x00000000004E4000-memory.dmp

Filesize
912KB

Download
memory/4172-140-0x0000000000400000-0x00000000004E4000-memory.dmp

Filesize
912KB

Download
memory/4772-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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