ramnit | c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240

Analysis

max time kernel
95s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2024, 18:30

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General

Target

c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240.exe
Size

204KB
MD5

189dc5f74b61e92c6859c369337e679e
SHA1

e07d47f6a5190cd925d049fd853eb4aa4ebb6448
SHA256

c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240
SHA512

95b57fa5f7108cf25a060fa31c1a96f13f5659867c5e63653aaaf4fe0ea65f45c02cec087cd0cfa13548a7f5dc606e221f3c16e8c1c69b26cd1414cb69ac3b66
SSDEEP

3072:ex2smNha00myg3m4zGMejNGBSNLM8snYr3ZV3DFoTYS39YLCpg1kAz2mLaQ:FNhKmErjPVM8snQ3z3DD89YL06JvLp

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
1044	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe
1608	DesktopLayer.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1044-7-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/1608-14-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/1608-16-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/1608-22-0x0000000000400000-0x0000000000415000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px88A8.tmp	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1752	3436	WerFault.exe	85

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	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
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
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\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1708231135"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152068"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	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
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{913F7479-C3B7-11EF-BEF1-DA61A5E71E4E} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442002840"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\GPU	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
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	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\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1707136896"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31152068"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152068"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31152068"	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\PendingRecovery	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\Main\WindowsSearch	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 (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1707136896"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1708231135"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1608	DesktopLayer.exe
1608	DesktopLayer.exe
1608	DesktopLayer.exe
1608	DesktopLayer.exe
1608	DesktopLayer.exe
1608	DesktopLayer.exe
1608	DesktopLayer.exe
1608	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4804	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4804	iexplore.exe
4804	iexplore.exe
440	IEXPLORE.EXE
440	IEXPLORE.EXE
440	IEXPLORE.EXE
440	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4076 wrote to memory of 1044	4076	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240.exe	83
PID 4076 wrote to memory of 1044	4076	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240.exe	83
PID 4076 wrote to memory of 1044	4076	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240.exe	83
PID 1044 wrote to memory of 1608	1044	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe	84
PID 1044 wrote to memory of 1608	1044	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe	84
PID 1044 wrote to memory of 1608	1044	c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe	84
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 3436	1608	DesktopLayer.exe	85
PID 1608 wrote to memory of 4804	1608	DesktopLayer.exe	89
PID 1608 wrote to memory of 4804	1608	DesktopLayer.exe	89
PID 4804 wrote to memory of 440	4804	iexplore.exe	90
PID 4804 wrote to memory of 440	4804	iexplore.exe	90
PID 4804 wrote to memory of 440	4804	iexplore.exe	90

C:\Users\Admin\AppData\Local\Temp\c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240.exe
"C:\Users\Admin\AppData\Local\Temp\c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Users\Admin\AppData\Local\Temp\c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe
  C:\Users\Admin\AppData\Local\Temp\c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1044
- - 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:1608
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      4⤵
      PID:3436
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 204
        5⤵
        Program crash
        
        PID:1752
  - - 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:4804
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4804 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3436 -ip 3436
1⤵
PID:1748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

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
863881560832be6db3d7e95507b796d8

SHA1
bab29c682b73454cb94d1a0edfaae5fd64d076f6

SHA256
1b8c898d463e9947656d97610caa6068a39c17fae72baa9168113364b7f70063

SHA512
0556ac3e08e23d12ba2558e3e1320f8c7591359a003c6b98e3d93208361000c3fc25dc13e9f4a3575ef854bd903b32f62a36e541ba10de67f38663d8d8debbcb

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

Filesize
404B

MD5
63003017404b871ba3dc4eb6699bd5a0

SHA1
7d1240a869e7c412c3865d37f2bed3c0f6fbbd96

SHA256
df8b23aba01c1ef601693266cdb32b1c7d2c14f5045154983346a59c4d260ede

SHA512
c5ba9c02eca106add7a2d293dd9da6605e2cf5cc049488f383d4a5025fbd5e3dd6b264157719380d499709e7dd20b8a2a3bb1f36ead11456bc90b99f4c5f9758

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verC30.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

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\c672e91fa1ba2cfe2a90f3aed84b24eff9d3d2927a58b8070d5310b9c83c8240Srv.exe

Filesize
52KB

MD5
a3e0fcd3f20ce9325284213684768a40

SHA1
1d523885a94c71659135bb1091e7b2e30a0e8a1b

SHA256
542fe44cc87cc6ab352994f51bcaa179a63c18e342a1e5b4beaad3225fae132f

SHA512
35ecd3fa6aabac8dca3922932e49b9bd11c82f2606dc391d1dc2b39bde110bab6dde941d30004670dc86e9cb8c29209374e09e955f4a975fa183393f89f61143

Download Submit
memory/1044-6-0x0000000002160000-0x0000000002175000-memory.dmp

Filesize
84KB

Download
memory/1044-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1044-13-0x0000000002160000-0x0000000002175000-memory.dmp

Filesize
84KB

Download
memory/1608-15-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/1608-20-0x0000000077932000-0x0000000077933000-memory.dmp

Filesize
4KB

Download
memory/1608-22-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1608-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1608-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3436-18-0x0000000000A70000-0x0000000000A71000-memory.dmp

Filesize
4KB

Download
memory/3436-19-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/4076-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4076-5-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download