ramnit | 639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d

General

Target

639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe
Size

9.1MB
MD5

7130547d8ffd966c69e74b5131ba3ae9
SHA1

018ffa5f676de14bb171d1d83c8dc222b3284354
SHA256

639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d
SHA512

03f0e01ddd1f387e6ae22942569c8d5f1032e57bd2b4fdca00326d6821030b6f8584f147babc37adb9847d130f558886c2ada3552a00e6636d2b1a100ea52242
SSDEEP

196608:Z8QFNkqDejp8qx8SlXJjb0+7FlfHqEbRaLjX+RKOJpmFf4K:WQzLe8NSlZjbZLvq/i2f4K

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
5020	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe
1248	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0007000000023194-135.dat	upx
behavioral2/files/0x0007000000023194-137.dat	upx
behavioral2/files/0x000900000002318e-139.dat	upx
behavioral2/files/0x000900000002318e-140.dat	upx
behavioral2/memory/5020-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1248-142-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
4336	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe
4336	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe
4336	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe
4336	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxE7EF.tmp	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.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 18 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
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\WindowsSearch\Version = "WS not running"	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
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\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{5449AFEF-6B99-11ED-919F-621DF61BAEF5} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376019158"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1248	DesktopLayer.exe
1248	DesktopLayer.exe
1248	DesktopLayer.exe
1248	DesktopLayer.exe
1248	DesktopLayer.exe
1248	DesktopLayer.exe
1248	DesktopLayer.exe
1248	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1568	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1568	iexplore.exe
1568	iexplore.exe
4516	IEXPLORE.EXE
4516	IEXPLORE.EXE
4516	IEXPLORE.EXE
4516	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 5020	4336	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe	81
PID 4336 wrote to memory of 5020	4336	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe	81
PID 4336 wrote to memory of 5020	4336	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe	81
PID 5020 wrote to memory of 1248	5020	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe	82
PID 5020 wrote to memory of 1248	5020	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe	82
PID 5020 wrote to memory of 1248	5020	639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe	82
PID 1248 wrote to memory of 1568	1248	DesktopLayer.exe	83
PID 1248 wrote to memory of 1568	1248	DesktopLayer.exe	83
PID 1568 wrote to memory of 4516	1568	iexplore.exe	86
PID 1568 wrote to memory of 4516	1568	iexplore.exe	86
PID 1568 wrote to memory of 4516	1568	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe
"C:\Users\Admin\AppData\Local\Temp\639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Users\Admin\AppData\Local\Temp\639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe
  C:\Users\Admin\AppData\Local\Temp\639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:5020
- - 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:1248
  - - 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:1568
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1568 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4516

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

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\Local\Temp\639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\639595495033b73a7cc753f38dbc5e9bb9a889ea635e9558f73e0f42bac9180dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nscE4F2.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nscE4F2.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nscE4F2.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
C:\Users\Admin\AppData\Local\Temp\nscE4F2.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/1248-142-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4336-143-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/4336-133-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/5020-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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