ramnit | a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48

General

Target

a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe
Size

812KB
MD5

46571ed22d9babf636741ade54abf690
SHA1

fa8cb514e67ee9d479f6c50fa20adce731e149ce
SHA256

a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48
SHA512

47ff2d6607bdbfd244a80748bbce11ac833941cee53731fd4328c225e1fc03354ede5ab22b8e3368ac0dab62998809da92c2ce44632e2297e522a6d5ebf7b6bf
SSDEEP

12288:O+YziWYODK/DmS/veUMSel0oQuH5TUkkxJippA4gqbpLxvPynz5:O+PW/DK/DmmMSa2gC9

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
636	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe
3956	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0005000000022e04-134.dat	upx
behavioral2/files/0x0005000000022e04-135.dat	upx
behavioral2/files/0x0006000000022e0c-139.dat	upx
behavioral2/memory/636-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0006000000022e0c-137.dat	upx
behavioral2/memory/3956-140-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxE1AA.tmp	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.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 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3688221318"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{05C3DD84-4984-11ED-A0EE-5E349B7DFDEC} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30989712"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30989712"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3688221318"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372271697"	iexplore.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3956	DesktopLayer.exe
3956	DesktopLayer.exe
3956	DesktopLayer.exe
3956	DesktopLayer.exe
3956	DesktopLayer.exe
3956	DesktopLayer.exe
3956	DesktopLayer.exe
3956	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1656	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4708	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe
4708	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe
1656	iexplore.exe
1656	iexplore.exe
3676	IEXPLORE.EXE
3676	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4708 wrote to memory of 636	4708	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe	81
PID 4708 wrote to memory of 636	4708	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe	81
PID 4708 wrote to memory of 636	4708	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe	81
PID 636 wrote to memory of 3956	636	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe	82
PID 636 wrote to memory of 3956	636	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe	82
PID 636 wrote to memory of 3956	636	a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe	82
PID 3956 wrote to memory of 1656	3956	DesktopLayer.exe	83
PID 3956 wrote to memory of 1656	3956	DesktopLayer.exe	83
PID 1656 wrote to memory of 3676	1656	iexplore.exe	84
PID 1656 wrote to memory of 3676	1656	iexplore.exe	84
PID 1656 wrote to memory of 3676	1656	iexplore.exe	84

C:\Users\Admin\AppData\Local\Temp\a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe
"C:\Users\Admin\AppData\Local\Temp\a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48.exe"
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4708
- C:\Users\Admin\AppData\Local\Temp\a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe
  C:\Users\Admin\AppData\Local\Temp\a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:636
- - 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:3956
  - - 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:1656
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1656 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3676

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4964

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\a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\a015f5c5ceb9547cf68a26405738ee3f8baa47088cec96907eb982ce1c5d4f48Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/636-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3956-140-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4708-132-0x00000000006A0000-0x000000000076F000-memory.dmp

Filesize
828KB

Download
memory/4708-141-0x00000000006A0000-0x000000000076F000-memory.dmp

Filesize
828KB

Download

Analysis

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