ramnit | 1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089

General

Target

1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe
Size

19.2MB
MD5

4905c90823cf9c0742822719b21b661e
SHA1

964e1e7e9e32978643b7ea798b310bfd59408156
SHA256

1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089
SHA512

b94e7ede1d1976958face901dee2b02c8f1d5d7858097c2134a05ef3f6a9e98ae39fab7901391d5d560d067654eaaff638be26ae96523d198c04ac3b496509a6
SSDEEP

393216:DQzsC3bsTS2JlGil1kmyTTmmSkd99ezJjPjBuXAKho/n2NnVI2U2k:DQzjbsT1/+5TKmr9YV9uQKho/niK2k

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
4092	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe
3476	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000023169-134.dat	upx
behavioral2/files/0x0006000000023169-136.dat	upx
behavioral2/files/0x000700000002316b-138.dat	upx
behavioral2/memory/4092-139-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000700000002316b-140.dat	upx
behavioral2/memory/3476-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
5116	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe
5116	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe
5116	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe
5116	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxF770.tmp	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.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 20 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\Main\WindowsSearch	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 (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\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998436"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375415478"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3446023775"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{ED10D671-6B97-11ED-919F-DAA3C5DFCF8A} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	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
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3446023775"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30998436"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3476	DesktopLayer.exe
3476	DesktopLayer.exe
3476	DesktopLayer.exe
3476	DesktopLayer.exe
3476	DesktopLayer.exe
3476	DesktopLayer.exe
3476	DesktopLayer.exe
3476	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1788	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1788	iexplore.exe
1788	iexplore.exe
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5116 wrote to memory of 4092	5116	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe	82
PID 5116 wrote to memory of 4092	5116	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe	82
PID 5116 wrote to memory of 4092	5116	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe	82
PID 4092 wrote to memory of 3476	4092	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe	83
PID 4092 wrote to memory of 3476	4092	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe	83
PID 4092 wrote to memory of 3476	4092	1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe	83
PID 3476 wrote to memory of 1788	3476	DesktopLayer.exe	84
PID 3476 wrote to memory of 1788	3476	DesktopLayer.exe	84
PID 1788 wrote to memory of 4520	1788	iexplore.exe	86
PID 1788 wrote to memory of 4520	1788	iexplore.exe	86
PID 1788 wrote to memory of 4520	1788	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe
"C:\Users\Admin\AppData\Local\Temp\1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Users\Admin\AppData\Local\Temp\1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe
  C:\Users\Admin\AppData\Local\Temp\1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4092
- - 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:3476
  - - 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:1788
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1788 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4520

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\1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\1786908d9556466cb5e3b8cf8b5ab566cf9544921f0f002d6c5afd865de43089Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nszF696.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nszF696.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nszF696.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
C:\Users\Admin\AppData\Local\Temp\nszF696.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/3476-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4092-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5116-142-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/5116-145-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download

Analysis

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