ramnit | 57bc0df44cdd059fb169f6754d1065d9f639d8c78f126fe4f3acc7a9811841e5

General

Target

57bc0df44cdd059fb169f6754d1065d9f639d8c78f126fe4f3acc7a9811841e5.dll
Size

3.7MB
MD5

bfdd804c8e727b5ca53fd6d859a9975a
SHA1

23e0aaf72c3d10374942d58d42bcf5e35be2a92e
SHA256

57bc0df44cdd059fb169f6754d1065d9f639d8c78f126fe4f3acc7a9811841e5
SHA512

b851d60b2a7e60526a4006a25090d282bbef88064c8fb4bb59159cc3672af4ac93ee50cc0c68072f93555efab83723da38444918302a5e4c95fff57da525d929

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

Processes:

rundll32Srv.exeDesktopLayer.exe

pid process

4104 rundll32Srv.exe
1640 DesktopLayer.exe

pid	process
4104	rundll32Srv.exe
1640	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
C:\Windows\SysWOW64\rundll32Srv.exe	upx
C:\Windows\SysWOW64\rundll32Srv.exe	upx
behavioral2/memory/4104-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral2/memory/1640-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe

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

Drops file in Program Files directory 3 IoCs

Processes:

rundll32Srv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px9FCF.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "362138967"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30966120"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3552402559"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30966120"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3563497540"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30966120"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{FECE4F3E-ED5B-11EC-AD90-E2E53B72FDDE} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3552402559"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
1640	DesktopLayer.exe
1640	DesktopLayer.exe
1640	DesktopLayer.exe
1640	DesktopLayer.exe
1640	DesktopLayer.exe
1640	DesktopLayer.exe
1640	DesktopLayer.exe
1640	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

4740 iexplore.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2024 rundll32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

4740 iexplore.exe

pid	process
4740	iexplore.exe

description	pid	process
Token: SeDebugPrivilege	2024	rundll32.exe

pid	process
4740	iexplore.exe

Suspicious use of SetWindowsHookEx 49 IoCs

Processes:

rundll32.exeiexplore.exeIEXPLORE.EXE

pid	process
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
2024	rundll32.exe
4740	iexplore.exe
4740	iexplore.exe
3440	IEXPLORE.EXE
3440	IEXPLORE.EXE
3440	IEXPLORE.EXE
3440	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 2408 wrote to memory of 2024	2408	rundll32.exe	rundll32.exe
PID 2408 wrote to memory of 2024	2408	rundll32.exe	rundll32.exe
PID 2408 wrote to memory of 2024	2408	rundll32.exe	rundll32.exe
PID 2024 wrote to memory of 4104	2024	rundll32.exe	rundll32Srv.exe
PID 2024 wrote to memory of 4104	2024	rundll32.exe	rundll32Srv.exe
PID 2024 wrote to memory of 4104	2024	rundll32.exe	rundll32Srv.exe
PID 4104 wrote to memory of 1640	4104	rundll32Srv.exe	DesktopLayer.exe
PID 4104 wrote to memory of 1640	4104	rundll32Srv.exe	DesktopLayer.exe
PID 4104 wrote to memory of 1640	4104	rundll32Srv.exe	DesktopLayer.exe
PID 1640 wrote to memory of 4740	1640	DesktopLayer.exe	iexplore.exe
PID 1640 wrote to memory of 4740	1640	DesktopLayer.exe	iexplore.exe
PID 4740 wrote to memory of 3440	4740	iexplore.exe	IEXPLORE.EXE
PID 4740 wrote to memory of 3440	4740	iexplore.exe	IEXPLORE.EXE
PID 4740 wrote to memory of 3440	4740	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\57bc0df44cdd059fb169f6754d1065d9f639d8c78f126fe4f3acc7a9811841e5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2408

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\57bc0df44cdd059fb169f6754d1065d9f639d8c78f126fe4f3acc7a9811841e5.dll,#1
2⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2024

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:4104

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:1640

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
5⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4740

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4740 CREDAT:17410 /prefetch:2
6⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3440

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize
471B

MD5
c9ae1e7801084e92dcd15b6a3ad77f77

SHA1
351bdb3cb79616c81d6689d1b895491d97d41b39

SHA256
e091628de1416f8831014709b6d6cd0c3b56a424f2642bd42e54e2106adef30b

SHA512
01eb9ac8c6120e2bb3a8e02739cf5568b29b9f562b67c9e93ed45f14c6fdb0c3ea3fc1a1842cbf63a672d4c6e886a7fcf05650554effdbb30e861aa5612c0da7

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize
404B

MD5
3b3b982964d4515621e7881786d16807

SHA1
37e01e6c16caa0a645f1308abd0f9d907b0cd148

SHA256
9407d0e0ae7d951fd1701f4f838c0f95d8393714291583c4d6a450f6a85f7714

SHA512
79564ac7d425de5ce339fe9e3ae3a39a2531c3013986da47ff0d00588f3a076b608342d1fddd68d6aaaafee05dde708c31a76fd82c829201390600d60cd2480a

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/1640-134-0x0000000000000000-mapping.dmp

Download
memory/1640-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1640-140-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/2024-137-0x0000000010000000-0x00000000103DA000-memory.dmp

Filesize
3.9MB

Download
memory/2024-142-0x0000000010000000-0x00000000103DA000-memory.dmp

Filesize
3.9MB

Download
memory/2024-130-0x0000000000000000-mapping.dmp

Download
memory/4104-139-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4104-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4104-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads