blackmoon | 873e6e582217c98d57ff5cf21c544489185a0aef8b86e0f1778f1e164c69fcbd

General

Target

873e6e582217c98d57ff5cf21c544489185a0aef8b86e0f1778f1e164c69fcbd.dll
Size

1.1MB
MD5

5d497074da94eeeded7d4557eba73e10
SHA1

d61eb79d508b3729e9343a48e16ad098c3f6c4cb
SHA256

873e6e582217c98d57ff5cf21c544489185a0aef8b86e0f1778f1e164c69fcbd
SHA512

5b0bca86bd2d61e03c008c63446376a766af320575509e250a56a9d175c7f471fca5e937cb100c639fab9d08a65931ed219e0c4bef3fcdf82294f5024d4c4bc2
SSDEEP

12288:9MdkE0oB/ja5a1E9QBq/sha9r37fo+Xa//zG91fw4iiFfPdhohXPDQ2KG6CSQ:9MkE0Sa5cbBnhGfBX8K7fF7qfRKGtSQ

Score

10^/10

blackmoon ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Blackmoon, KrBanker
Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.
trojan banker blackmoon

Detect Blackmoon payload 3 IoCs

resource	yara_rule
behavioral2/memory/4612-140-0x0000000010000000-0x0000000010140000-memory.dmp	family_blackmoon
behavioral2/memory/4612-144-0x0000000010000000-0x0000000010140000-memory.dmp	family_blackmoon
behavioral2/memory/4612-145-0x0000000010000000-0x0000000010140000-memory.dmp	family_blackmoon

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Blocklisted process makes network request 1 IoCs

flow	pid	Process
38	4612	rundll32.exe

Executes dropped EXE 2 IoCs

pid	Process
220	rundll32Srv.exe
2004	DesktopLayer.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000300000002265f-134.dat	upx
behavioral2/files/0x000300000002265f-135.dat	upx
behavioral2/files/0x000700000001e792-137.dat	upx
behavioral2/files/0x000700000001e792-138.dat	upx
behavioral2/memory/220-139-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2004-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2004-143-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px560F.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30999443"	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\WindowsSearch	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
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30999443"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2257615760"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2257615760"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	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 (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2209334431"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30999443"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	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
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30999443"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375847860"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A9E42C4B-6F86-11ED-919F-E2CDD1D11107} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2209334431"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2004	DesktopLayer.exe
2004	DesktopLayer.exe
2004	DesktopLayer.exe
2004	DesktopLayer.exe
2004	DesktopLayer.exe
2004	DesktopLayer.exe
2004	DesktopLayer.exe
2004	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3788	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3788	iexplore.exe
3788	iexplore.exe
4604	IEXPLORE.EXE
4604	IEXPLORE.EXE
4604	IEXPLORE.EXE
4604	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 4612	4272	rundll32.exe	81
PID 4272 wrote to memory of 4612	4272	rundll32.exe	81
PID 4272 wrote to memory of 4612	4272	rundll32.exe	81
PID 4612 wrote to memory of 220	4612	rundll32.exe	84
PID 4612 wrote to memory of 220	4612	rundll32.exe	84
PID 4612 wrote to memory of 220	4612	rundll32.exe	84
PID 220 wrote to memory of 2004	220	rundll32Srv.exe	85
PID 220 wrote to memory of 2004	220	rundll32Srv.exe	85
PID 220 wrote to memory of 2004	220	rundll32Srv.exe	85
PID 2004 wrote to memory of 3788	2004	DesktopLayer.exe	86
PID 2004 wrote to memory of 3788	2004	DesktopLayer.exe	86
PID 3788 wrote to memory of 4604	3788	iexplore.exe	88
PID 3788 wrote to memory of 4604	3788	iexplore.exe	88
PID 3788 wrote to memory of 4604	3788	iexplore.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\873e6e582217c98d57ff5cf21c544489185a0aef8b86e0f1778f1e164c69fcbd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\873e6e582217c98d57ff5cf21c544489185a0aef8b86e0f1778f1e164c69fcbd.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4612
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:220
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2004
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3788
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3788 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4604

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:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/220-133-0x0000000000000000-mapping.dmp

Download
memory/220-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2004-136-0x0000000000000000-mapping.dmp

Download
memory/2004-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2004-142-0x0000000000580000-0x000000000058F000-memory.dmp

Filesize
60KB

Download
memory/2004-143-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4612-132-0x0000000000000000-mapping.dmp

Download
memory/4612-140-0x0000000010000000-0x0000000010140000-memory.dmp

Filesize
1.2MB

Download
memory/4612-144-0x0000000010000000-0x0000000010140000-memory.dmp

Filesize
1.2MB

Download
memory/4612-145-0x0000000010000000-0x0000000010140000-memory.dmp

Filesize
1.2MB

Download

Analysis

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