ramnit | fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e

General

Target

fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe
Size

2.4MB
MD5

3e4b2778a40d2473e448347eecf54936
SHA1

a07437be7b03b0d5ff8795ca78b03a9e88d826d7
SHA256

fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e
SHA512

fe47adc28ecacfdde05246196f436eedb5cb551516e30af61d0e864bcc82368c7c45a7b1392a58f799d42238aba631b623f2378c5a44ddc8e7959599cdd63fee
SSDEEP

49152:2CNyfyD2phLtaAGcoaNKIayOzRkvBCofB0hMaG85Yo8zhJGDP:VkDLQA8AONkv9fBWkVdJQP

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
920	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe
4584	DesktopLayer.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000022e00-134.dat	upx
behavioral2/memory/920-137-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/920-139-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0006000000022e00-141.dat	upx
behavioral2/files/0x0007000000022e01-143.dat	upx
behavioral2/files/0x0007000000022e01-144.dat	upx
behavioral2/memory/4584-145-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
2168	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe
2168	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe
2168	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe
2168	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px2431.tmp	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.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-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30998858"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998858"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376199633"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1529622225"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1529622225"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{82FF671F-6D3D-11ED-BF5F-5695DBFAB5D8} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4584	DesktopLayer.exe
4584	DesktopLayer.exe
4584	DesktopLayer.exe
4584	DesktopLayer.exe
4584	DesktopLayer.exe
4584	DesktopLayer.exe
4584	DesktopLayer.exe
4584	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1508	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1508	iexplore.exe
1508	iexplore.exe
4252	IEXPLORE.EXE
4252	IEXPLORE.EXE
4252	IEXPLORE.EXE
4252	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 920	2168	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe	84
PID 2168 wrote to memory of 920	2168	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe	84
PID 2168 wrote to memory of 920	2168	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe	84
PID 920 wrote to memory of 4584	920	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe	87
PID 920 wrote to memory of 4584	920	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe	87
PID 920 wrote to memory of 4584	920	fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe	87
PID 4584 wrote to memory of 1508	4584	DesktopLayer.exe	88
PID 4584 wrote to memory of 1508	4584	DesktopLayer.exe	88
PID 1508 wrote to memory of 4252	1508	iexplore.exe	89
PID 1508 wrote to memory of 4252	1508	iexplore.exe	89
PID 1508 wrote to memory of 4252	1508	iexplore.exe	89

C:\Users\Admin\AppData\Local\Temp\fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe
"C:\Users\Admin\AppData\Local\Temp\fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe
  C:\Users\Admin\AppData\Local\Temp\fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:920
- - 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:4584
  - - 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:1508
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1508 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4252

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\fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\fe757dba992df6876fdaba4f89fbd8122351668347bf135ad9538725c8b3c79eSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiF504.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiF504.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiF504.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsiF504.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/920-137-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/920-138-0x0000000000470000-0x000000000047F000-memory.dmp

Filesize
60KB

Download
memory/920-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2168-136-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/2168-140-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/4584-145-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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