ramnit | c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385

General

Target

c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
Size

92KB
MD5

2feb76a5d8a296d1353a7fe66ddc4ad5
SHA1

3df41c7f8f17c60c224bbc5834bd5f222c2bafa3
SHA256

c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385
SHA512

bcba929cfb3ebe9f683b369a3c6fd87e0e94db8a4095e1afea26897139303360bc61781f2e6c770c518a5e1dd8ea57cf63880282a51b9ace6c8d2637e6f3c183
SSDEEP

1536:mf4HD533a5MQxO7LeRiAfLiJaKQTjAVENCfU2yhhlElCJUbJ1YJxWSrSMJr/:fN336MdMfLirajAVNQhHElCabJaxWSRz

Score

10^/10

ramnit banker discovery 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
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
4200	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe
852	DesktopLayer.exe

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Videos\desktop.ini	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
File opened for modification	C:\Users\Public\desktop.ini	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b9d-3.dat	upx
behavioral2/memory/4200-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4200-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/852-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/852-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px882B.tmp	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4267640544"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{29E4C95B-D252-11EF-BEF1-E6FB6C85BB83} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31155806"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4269827738"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31155806"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443608555"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
852	DesktopLayer.exe
852	DesktopLayer.exe
852	DesktopLayer.exe
852	DesktopLayer.exe
852	DesktopLayer.exe
852	DesktopLayer.exe
852	DesktopLayer.exe
852	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2796	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2796	iexplore.exe
2796	iexplore.exe
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 4200	4712	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe	84
PID 4712 wrote to memory of 4200	4712	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe	84
PID 4712 wrote to memory of 4200	4712	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe	84
PID 4200 wrote to memory of 852	4200	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe	85
PID 4200 wrote to memory of 852	4200	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe	85
PID 4200 wrote to memory of 852	4200	c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe	85
PID 852 wrote to memory of 2796	852	DesktopLayer.exe	86
PID 852 wrote to memory of 2796	852	DesktopLayer.exe	86
PID 2796 wrote to memory of 2604	2796	iexplore.exe	87
PID 2796 wrote to memory of 2604	2796	iexplore.exe	87
PID 2796 wrote to memory of 2604	2796	iexplore.exe	87

C:\Users\Admin\AppData\Local\Temp\c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe
"C:\Users\Admin\AppData\Local\Temp\c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385.exe"
1⤵
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Users\Admin\AppData\Local\Temp\c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe
  C:\Users\Admin\AppData\Local\Temp\c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4200
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:852
  - - 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:2796
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2796 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
4678c6b9e04d71f22ad272e0502cdb5e

SHA1
3f4cda0c3979c8f87b48914dd58b7eec0d480738

SHA256
8a2e74caaacdb17295780859af0882ff7e55a14ba77b04ab4656462c44adb673

SHA512
b347198672efdfb51dfdc266aa96b463fc8ee2bb260f9b493055849be7805c38b0c176d25bece406106d9d2e526c5948579f53d38737517496c1c81a7f9a2bbf

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

Filesize
404B

MD5
8e330ef4f2ca7bbe8ec8fbc343ad74f5

SHA1
ce92d2a79a0a9779037c8077a59fa37c7f847aa4

SHA256
3e9abf539f68966adbcf9da118ee17cb4b58dd5187ac23ed539976527abcadce

SHA512
a53e402ca6463afbcf432eed6ee073d3560355bc205c2a4865a1d4834882d15204015b8cdec2ebb7a2400034695472c036e8a6141b6a601d89c55ae11b04a4a5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\c834c3be5fd77ec31c874308386f3f5b50bca5df07bde5d4d804530d2bc20385Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/852-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/852-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/852-13-0x0000000000520000-0x0000000000521000-memory.dmp

Filesize
4KB

Download
memory/4200-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4200-5-0x0000000002040000-0x000000000204F000-memory.dmp

Filesize
60KB

Download
memory/4200-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4712-0-0x00000000001A0000-0x00000000001BB000-memory.dmp

Filesize
108KB

Download
memory/4712-17-0x00000000001A0000-0x00000000001BB000-memory.dmp

Filesize
108KB

Download

Analysis

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