ramnit | 3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea

Analysis

max time kernel
106s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
01-07-2022 14:41

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General

Target

3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe
Size

2.3MB
MD5

218b9668f4db8cd50baa16c3ae05b893
SHA1

4bc3bdb93defa9182b2f1597b6e4a02f7f4bdca9
SHA256

3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea
SHA512

8dc8b17b23342e4cd6ad3bb882aae30ebe812435ec10638a2910b4dbc42afbcc2d2564dede1f0d9a4ca367140a4edea9ff6e5f4bd20050049f0053c80c8f75a8

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:

3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exeDesktopLayer.exe

pid process

2340 3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
4216 DesktopLayer.exe

pid	process
2340	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
4216	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral2/memory/2340-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral2/memory/4216-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 4 IoCs

Processes:

3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe

pid	process
2380	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe
2380	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe
2380	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe
2380	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe

Drops file in Program Files directory 3 IoCs

Processes:

3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px2EB1.tmp	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.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 28 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30969196"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "363459859"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30969196"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1155737690"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30969196"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{672247CD-F95F-11EC-A58B-7A7C173711D6} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1016674817"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1016674817"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
4216	DesktopLayer.exe
4216	DesktopLayer.exe
4216	DesktopLayer.exe
4216	DesktopLayer.exe
4216	DesktopLayer.exe
4216	DesktopLayer.exe
4216	DesktopLayer.exe
4216	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

4848 iexplore.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

4848 iexplore.exe
4848 iexplore.exe
576 IEXPLORE.EXE
576 IEXPLORE.EXE

pid	process
4848	iexplore.exe

pid	process
4848	iexplore.exe
4848	iexplore.exe
576	IEXPLORE.EXE
576	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 2380 wrote to memory of 2340	2380	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
PID 2380 wrote to memory of 2340	2380	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
PID 2380 wrote to memory of 2340	2380	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
PID 2340 wrote to memory of 4216	2340	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe	DesktopLayer.exe
PID 2340 wrote to memory of 4216	2340	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe	DesktopLayer.exe
PID 2340 wrote to memory of 4216	2340	3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe	DesktopLayer.exe
PID 4216 wrote to memory of 4848	4216	DesktopLayer.exe	iexplore.exe
PID 4216 wrote to memory of 4848	4216	DesktopLayer.exe	iexplore.exe
PID 4848 wrote to memory of 576	4848	iexplore.exe	IEXPLORE.EXE
PID 4848 wrote to memory of 576	4848	iexplore.exe	IEXPLORE.EXE
PID 4848 wrote to memory of 576	4848	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe
"C:\Users\Admin\AppData\Local\Temp\3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eea.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2380

C:\Users\Admin\AppData\Local\Temp\3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
C:\Users\Admin\AppData\Local\Temp\3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2340

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:4216

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:4848

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4848 CREDAT:17410 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:576

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

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

MD5
05e31798a1fb9c60584b0c4c5d428909

SHA1
02629fa373f37cc69985c3fd7c007dfef202489a

SHA256
2fcfe509eb22a200a5f6601d30076f58e6139ff6d96961ff8c5a7913296bef77

SHA512
1ae80ea7f0b277bc5f5897b103a2c209ddfec103ca6280c9313e3e98a73988fc4ffcb28fd44d1f5bbff81db8c96bf81dfc96019f596c93398643b361a18606b0

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize
434B

MD5
a898f3ba4e3b4c51229127b4acb35001

SHA1
b2076bf8072a605668de4e15921df4185f5a64a6

SHA256
77a51d3d197f9023645d2198f56c2975402d518f480a9312efc2252c59eea1bd

SHA512
f0cc1a86ff496a3b4e0fa7f1851bd7e4a21e6228abebb5bdc8fa3047387d98f4c142a597cf84d43f3fc05edb25b0980dcd8be46eb3f99844821a1fe9a1f63041

Download Submit
C:\Users\Admin\AppData\Local\Temp\3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\3dbb1ddea8874e28791b1a82906280a49dba26828bc10b6c3070ce5b421f6eeaSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso2BD4.tmp\ButtonLinker.dll
Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso2BD4.tmp\ButtonLinker.dll
Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso2BD4.tmp\System.dll
Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso2BD4.tmp\System.dll
Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/2340-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2340-139-0x0000000000540000-0x000000000054F000-memory.dmp

Filesize
60KB

Download
memory/2340-131-0x0000000000000000-mapping.dmp

Download
memory/2380-136-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/2380-144-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/4216-135-0x0000000000000000-mapping.dmp

Download
memory/4216-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download