ramnit | 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1

General

Target

4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe
Size

140KB
MD5

0dcf020428b38763668021a73b46f9c0
SHA1

3f11d79b9295537a52e24b030aefc4661d1975ef
SHA256

4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1
SHA512

150506064af1f42ea882a168f02f00a1c854e15904c844a3e83c4019c60fae460eddb06ae4f3ebad2fad1bbae4c3999945355d738f2448d154b3aa4132e9c858
SSDEEP

3072:63biGPtpG8jWNHfXhNNGo56GYM7creqftJRDHQ:6bpG8jWNH/NGJ1yqfxQ

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
4244	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe
4332	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0003000000000727-134.dat	upx
behavioral2/files/0x0003000000000727-135.dat	upx
behavioral2/files/0x000400000000072b-137.dat	upx
behavioral2/files/0x000400000000072b-138.dat	upx
behavioral2/memory/4244-139-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4332-140-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px7AA3.tmp	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1284413385"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374564510"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30995051"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{77F2F5BD-5E5E-11ED-B696-C2DBB15B3A76} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1284413385"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30995051"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4332	DesktopLayer.exe
4332	DesktopLayer.exe
4332	DesktopLayer.exe
4332	DesktopLayer.exe
4332	DesktopLayer.exe
4332	DesktopLayer.exe
4332	DesktopLayer.exe
4332	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4328	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4328	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4328	iexplore.exe
4328	iexplore.exe
4736	IEXPLORE.EXE
4736	IEXPLORE.EXE
4736	IEXPLORE.EXE
4736	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 4244	2564	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe	82
PID 2564 wrote to memory of 4244	2564	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe	82
PID 2564 wrote to memory of 4244	2564	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe	82
PID 4244 wrote to memory of 4332	4244	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe	83
PID 4244 wrote to memory of 4332	4244	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe	83
PID 4244 wrote to memory of 4332	4244	4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe	83
PID 4332 wrote to memory of 4328	4332	DesktopLayer.exe	84
PID 4332 wrote to memory of 4328	4332	DesktopLayer.exe	84
PID 4328 wrote to memory of 4736	4328	iexplore.exe	85
PID 4328 wrote to memory of 4736	4328	iexplore.exe	85
PID 4328 wrote to memory of 4736	4328	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe
"C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe
  C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4244
- - 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:4332
  - - 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:4328
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4328 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4736

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\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/2564-132-0x0000000001000000-0x0000000001041000-memory.dmp

Filesize
260KB

Download
memory/2564-141-0x0000000001000000-0x0000000001041000-memory.dmp

Filesize
260KB

Download
memory/4244-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4332-140-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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