ramnit | 454457e0c541912a27e549c19a518a7669da57039a8d34e99411618e310bd1b5

Analysis

max time kernel
150s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
07-07-2022 16:25

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General

Target

454457e0c541912a27e549c19a518a7669da57039a8d34e99411618e310bd1b5.dll
Size

496KB
MD5

74552aa7084368c230516c656da8ac78
SHA1

ef2989cc79787a5e1ef55b58eb170be902aab084
SHA256

454457e0c541912a27e549c19a518a7669da57039a8d34e99411618e310bd1b5
SHA512

acd324c8c8ffcd1c084dba58b19699975f9102fb4abd40917ee9714802c29d32f4d1e95deb7b3e88a651ad0b79dadba64bb7269f6c0bb475e2a5d3d97d970bcf

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 4 IoCs

Processes:

rundll32Srv.exerundll32Srvmgr.exeDesktopLayer.exeDesktopLayermgr.exe

pid process

3952 rundll32Srv.exe
4984 rundll32Srvmgr.exe
4768 DesktopLayer.exe
4888 DesktopLayermgr.exe

pid	process
3952	rundll32Srv.exe
4984	rundll32Srvmgr.exe
4768	DesktopLayer.exe
4888	DesktopLayermgr.exe

UPX packed file 8 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
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral2/memory/3952-139-0x0000000000400000-0x0000000000447000-memory.dmp	upx
behavioral2/memory/4768-142-0x0000000000400000-0x0000000000447000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral2/memory/4768-148-0x0000000000400000-0x0000000000447000-memory.dmp	upx
behavioral2/memory/4888-153-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 2 IoCs

Processes:

rundll32Srvmgr.exeDesktopLayermgr.exe

pid process

4984 rundll32Srvmgr.exe
4888 DesktopLayermgr.exe
Drops file in System32 directory 2 IoCs

Processes:

rundll32.exerundll32Srv.exe

description ioc process

File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe
File created C:\Windows\SysWOW64\rundll32Srvmgr.exe rundll32Srv.exe

pid	process
4984	rundll32Srvmgr.exe
4888	DesktopLayermgr.exe

description	ioc	process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe
File created	C:\Windows\SysWOW64\rundll32Srvmgr.exe	rundll32Srv.exe

Drops file in Program Files directory 4 IoCs

Processes:

rundll32Srv.exeDesktopLayer.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayermgr.exe	DesktopLayer.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px85AF.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1248 4888 WerFault.exe DesktopLayermgr.exe
5092 4984 WerFault.exe rundll32Srvmgr.exe

pid	pid_target	process	target process
1248	4888	WerFault.exe	DesktopLayermgr.exe
5092	4984	WerFault.exe	rundll32Srvmgr.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

Processes:

IEXPLORE.EXEiexplore.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3213219627"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30970416"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{CBC57EA0-FE23-11EC-B274-FEA8B733FE75} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "363984020"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30970416"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3213219627"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
4768	DesktopLayer.exe
4768	DesktopLayer.exe
4768	DesktopLayer.exe
4768	DesktopLayer.exe
4768	DesktopLayer.exe
4768	DesktopLayer.exe
4768	DesktopLayer.exe
4768	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

2260 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

2260 iexplore.exe
2260 iexplore.exe
4856 IEXPLORE.EXE
4856 IEXPLORE.EXE
4856 IEXPLORE.EXE
4856 IEXPLORE.EXE

pid	process
2260	iexplore.exe

pid	process
2260	iexplore.exe
2260	iexplore.exe
4856	IEXPLORE.EXE
4856	IEXPLORE.EXE
4856	IEXPLORE.EXE
4856	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 3964 wrote to memory of 4896	3964	rundll32.exe	rundll32.exe
PID 3964 wrote to memory of 4896	3964	rundll32.exe	rundll32.exe
PID 3964 wrote to memory of 4896	3964	rundll32.exe	rundll32.exe
PID 4896 wrote to memory of 3952	4896	rundll32.exe	rundll32Srv.exe
PID 4896 wrote to memory of 3952	4896	rundll32.exe	rundll32Srv.exe
PID 4896 wrote to memory of 3952	4896	rundll32.exe	rundll32Srv.exe
PID 3952 wrote to memory of 4984	3952	rundll32Srv.exe	rundll32Srvmgr.exe
PID 3952 wrote to memory of 4984	3952	rundll32Srv.exe	rundll32Srvmgr.exe
PID 3952 wrote to memory of 4984	3952	rundll32Srv.exe	rundll32Srvmgr.exe
PID 3952 wrote to memory of 4768	3952	rundll32Srv.exe	DesktopLayer.exe
PID 3952 wrote to memory of 4768	3952	rundll32Srv.exe	DesktopLayer.exe
PID 3952 wrote to memory of 4768	3952	rundll32Srv.exe	DesktopLayer.exe
PID 4768 wrote to memory of 4888	4768	DesktopLayer.exe	DesktopLayermgr.exe
PID 4768 wrote to memory of 4888	4768	DesktopLayer.exe	DesktopLayermgr.exe
PID 4768 wrote to memory of 4888	4768	DesktopLayer.exe	DesktopLayermgr.exe
PID 4768 wrote to memory of 2260	4768	DesktopLayer.exe	iexplore.exe
PID 4768 wrote to memory of 2260	4768	DesktopLayer.exe	iexplore.exe
PID 2260 wrote to memory of 4856	2260	iexplore.exe	IEXPLORE.EXE
PID 2260 wrote to memory of 4856	2260	iexplore.exe	IEXPLORE.EXE
PID 2260 wrote to memory of 4856	2260	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\454457e0c541912a27e549c19a518a7669da57039a8d34e99411618e310bd1b5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3964

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\454457e0c541912a27e549c19a518a7669da57039a8d34e99411618e310bd1b5.dll,#1
2⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4896

C:\Windows\SysWOW64\rundll32Srv.exe
C:\Windows\SysWOW64\rundll32Srv.exe
3⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3952

C:\Windows\SysWOW64\rundll32Srvmgr.exe
C:\Windows\SysWOW64\rundll32Srvmgr.exe
4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 10180
5⤵
- Program crash
PID:5092

C:\Program Files (x86)\Microsoft\DesktopLayer.exe
"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
4⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4768

C:\Program Files (x86)\Microsoft\DesktopLayermgr.exe
"C:\Program Files (x86)\Microsoft\DesktopLayermgr.exe"
5⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 10176
6⤵
- Program crash
PID:1248

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:2260

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2260 CREDAT:17410 /prefetch:2
6⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4888 -ip 4888
1⤵
PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4984 -ip 4984
1⤵
PID:2160

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe
Filesize
152KB

MD5
2c60a0eb60587e6e9dbd389576a30d91

SHA1
9fc335861b437bb6cb3079fb07e420d8f39a4b12

SHA256
e8452f0b8c328b8737d3244729cfb9b5e4295167bfda075b2679c0c9978ab631

SHA512
10f7f201c1c6a36d23df72bf333663de844b7dc1b7ab7cdfeb787e66bff2bc47cda3dbe96db2d6ecb2b33364923c8334310ba1a00937e7de3e1cf8e4869e3697

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe
Filesize
152KB

MD5
2c60a0eb60587e6e9dbd389576a30d91

SHA1
9fc335861b437bb6cb3079fb07e420d8f39a4b12

SHA256
e8452f0b8c328b8737d3244729cfb9b5e4295167bfda075b2679c0c9978ab631

SHA512
10f7f201c1c6a36d23df72bf333663de844b7dc1b7ab7cdfeb787e66bff2bc47cda3dbe96db2d6ecb2b33364923c8334310ba1a00937e7de3e1cf8e4869e3697

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayermgr.exe
Filesize
94KB

MD5
f8434f362add5334f4f050f4b4b373a7

SHA1
f5915cb0d72c8faffe11126bc29da1b1db8092bc

SHA256
d34b378ede04c585c2bff8cf32112904e8512ee80c5a9fbb34ba224d8dbc868b

SHA512
6c6b4ea2b0e37a346145ee2814789d9da4c2688aff1c3e1cced16a620e8dc81566670336a3fe8a510b1754bbac6c3c6ac20aa7e20359b9c322bb220b50ac30b9

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayermgr.exe
Filesize
94KB

MD5
f8434f362add5334f4f050f4b4b373a7

SHA1
f5915cb0d72c8faffe11126bc29da1b1db8092bc

SHA256
d34b378ede04c585c2bff8cf32112904e8512ee80c5a9fbb34ba224d8dbc868b

SHA512
6c6b4ea2b0e37a346145ee2814789d9da4c2688aff1c3e1cced16a620e8dc81566670336a3fe8a510b1754bbac6c3c6ac20aa7e20359b9c322bb220b50ac30b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\~TM86E8.tmp
Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
C:\Users\Admin\AppData\Local\Temp\~TM8746.tmp
Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe
Filesize
152KB

MD5
2c60a0eb60587e6e9dbd389576a30d91

SHA1
9fc335861b437bb6cb3079fb07e420d8f39a4b12

SHA256
e8452f0b8c328b8737d3244729cfb9b5e4295167bfda075b2679c0c9978ab631

SHA512
10f7f201c1c6a36d23df72bf333663de844b7dc1b7ab7cdfeb787e66bff2bc47cda3dbe96db2d6ecb2b33364923c8334310ba1a00937e7de3e1cf8e4869e3697

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe
Filesize
152KB

MD5
2c60a0eb60587e6e9dbd389576a30d91

SHA1
9fc335861b437bb6cb3079fb07e420d8f39a4b12

SHA256
e8452f0b8c328b8737d3244729cfb9b5e4295167bfda075b2679c0c9978ab631

SHA512
10f7f201c1c6a36d23df72bf333663de844b7dc1b7ab7cdfeb787e66bff2bc47cda3dbe96db2d6ecb2b33364923c8334310ba1a00937e7de3e1cf8e4869e3697

Download Submit
C:\Windows\SysWOW64\rundll32Srvmgr.exe
Filesize
94KB

MD5
f8434f362add5334f4f050f4b4b373a7

SHA1
f5915cb0d72c8faffe11126bc29da1b1db8092bc

SHA256
d34b378ede04c585c2bff8cf32112904e8512ee80c5a9fbb34ba224d8dbc868b

SHA512
6c6b4ea2b0e37a346145ee2814789d9da4c2688aff1c3e1cced16a620e8dc81566670336a3fe8a510b1754bbac6c3c6ac20aa7e20359b9c322bb220b50ac30b9

Download Submit
C:\Windows\SysWOW64\rundll32Srvmgr.exe
Filesize
94KB

MD5
f8434f362add5334f4f050f4b4b373a7

SHA1
f5915cb0d72c8faffe11126bc29da1b1db8092bc

SHA256
d34b378ede04c585c2bff8cf32112904e8512ee80c5a9fbb34ba224d8dbc868b

SHA512
6c6b4ea2b0e37a346145ee2814789d9da4c2688aff1c3e1cced16a620e8dc81566670336a3fe8a510b1754bbac6c3c6ac20aa7e20359b9c322bb220b50ac30b9

Download Submit
memory/3952-131-0x0000000000000000-mapping.dmp

Download
memory/3952-139-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/3952-141-0x00000000005A0000-0x00000000005AF000-memory.dmp

Filesize
60KB

Download
memory/4768-142-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/4768-138-0x0000000000000000-mapping.dmp

Download
memory/4768-148-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/4888-143-0x0000000000000000-mapping.dmp

Download
memory/4888-152-0x0000000001EE0000-0x0000000001F0A000-memory.dmp

Filesize
168KB

Download
memory/4888-153-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4888-154-0x0000000077140000-0x00000000772E3000-memory.dmp

Filesize
1.6MB

Download
memory/4896-130-0x0000000000000000-mapping.dmp

Download
memory/4896-137-0x0000000021100000-0x0000000021186000-memory.dmp

Filesize
536KB

Download
memory/4984-133-0x0000000000000000-mapping.dmp

Download
memory/4984-150-0x0000000077140000-0x00000000772E3000-memory.dmp

Filesize
1.6MB

Download
memory/4984-151-0x0000000000680000-0x00000000006AA000-memory.dmp

Filesize
168KB

Download