ramnit | b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06

Analysis

max time kernel
200s
max time network
215s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 12:59

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General

Target

b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe
Size

16.4MB
MD5

17192b69b9f71486848dbbdb29ef36a8
SHA1

7cc0774af937d5f489db9627ee685f8bfb0e6953
SHA256

b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06
SHA512

64b81994ea3e79c6fa5d1dae2d97bb27bd13c5d39e4a2b266e5e6802e28cbf649eca61b6c91e67023ee8e0aef756047856ce6624659f8cc801721f086b292d20
SSDEEP

393216:raQzTmek3nMcFP1Y+b34ITAcF5/77dPNyWhq2QdZxoDaNa8:raQzpMMo9e6JJPppY0Dak8

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
2244	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe
4612	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0003000000000733-134.dat	upx
behavioral2/files/0x0003000000000733-136.dat	upx
behavioral2/files/0x0006000000009dc6-138.dat	upx
behavioral2/files/0x0006000000009dc6-140.dat	upx
behavioral2/memory/2244-139-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4612-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
2112	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe
2112	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe
2112	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe
2112	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px71A6.tmp	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2037998007"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998801"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30998801"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375572110"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{9EAC45C2-6D04-11ED-89AC-5ECC372795C7} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30998801"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2037998007"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2047060474"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2047060474"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998801"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4612	DesktopLayer.exe
4612	DesktopLayer.exe
4612	DesktopLayer.exe
4612	DesktopLayer.exe
4612	DesktopLayer.exe
4612	DesktopLayer.exe
4612	DesktopLayer.exe
4612	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2164	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2164	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2164	iexplore.exe
2164	iexplore.exe
4588	IEXPLORE.EXE
4588	IEXPLORE.EXE
4588	IEXPLORE.EXE
4588	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2244	2112	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe	82
PID 2112 wrote to memory of 2244	2112	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe	82
PID 2112 wrote to memory of 2244	2112	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe	82
PID 2244 wrote to memory of 4612	2244	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe	83
PID 2244 wrote to memory of 4612	2244	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe	83
PID 2244 wrote to memory of 4612	2244	b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe	83
PID 4612 wrote to memory of 2164	4612	DesktopLayer.exe	84
PID 4612 wrote to memory of 2164	4612	DesktopLayer.exe	84
PID 2164 wrote to memory of 4588	2164	iexplore.exe	85
PID 2164 wrote to memory of 4588	2164	iexplore.exe	85
PID 2164 wrote to memory of 4588	2164	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe
"C:\Users\Admin\AppData\Local\Temp\b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe
  C:\Users\Admin\AppData\Local\Temp\b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2244
- - 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:4612
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2164
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2164 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
a42abb21be3940a88a73771b18ed0f35

SHA1
de12f2f619852ef135ee726614c43c2033ec5743

SHA256
edaf1fb1f6ca2a0caf5f4d85b3f13507bd5df4971fa9ea8a6e08c1227f1ec667

SHA512
c1f775deb2bcb2e0c48ed74dec1cd95f34690ca16d6465175d52d60ae45e746201cc608a58b6f8f080b7e6a7893993b61093c7d9ff63fa735ebaba61ddd0ebf7

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

Filesize
434B

MD5
6af3973ecf02f041eaf19cab647c9501

SHA1
77c48370db5cb098b79f36c0009dc38e9ea51828

SHA256
89f1f2e1a6f6768d485f69884e9b5b4037c2b6d1dd4f48399355908d2aecda95

SHA512
d572f3aac86a9e537c75e4ca7f019d67aeadeba36e27a3a888bc8c9f629b4c2a7b7c438165717f6d101e49c0e9ad738dbe53f1708c63f00ebeca366d727f35d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\b629bd3fc3f6fc504a03b462380468de11013ba547bf948fd2b6636c097cee06Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsw70EB.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsw70EB.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsw70EB.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsw70EB.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/2112-142-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/2112-145-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/2244-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2244-133-0x0000000000000000-mapping.dmp

Download
memory/4612-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4612-137-0x0000000000000000-mapping.dmp

Download