ramnit | 2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 02:42

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General

Target
2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe
Size 2.3MB
Sample240610-c646msba3s
SHA256 2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004
MD5 54a9607e34204290c9a1b764a99f23ce
SHA1 54d587cb7b79bac9665d3a247acbbf6e7bca969c
SHA512 3ae75d062b18d283342aa4cc5d6906d0ef3b420eea6ed3ec2dcbdcbe60d32b3c79300f1867cc5582ca45f55fd695ff645410d4992ec7a7b119e9893326df099b
SSDEEP 49152:jwPEdMCxLbRdpWzSXQQUe1RmDzrCd3AeuguWkM+l1jgugcGfFy:jwcdMCxRdpfAZaRmDzORAeugUM+l1jgh
MD5 SHA1 SHA512 SSDEEP

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
4532	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe
2844	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023409-3.dat	upx
behavioral2/memory/4532-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2844-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4532-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2844-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4527.tmp	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31111904"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31111904"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{B921A83E-26D3-11EF-BCA5-DAA7D34B912A} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2375023106"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "424752600"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31111904"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2380960261"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2375178859"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\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

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2844	DesktopLayer.exe
2844	DesktopLayer.exe
2844	DesktopLayer.exe
2844	DesktopLayer.exe
2844	DesktopLayer.exe
2844	DesktopLayer.exe
2844	DesktopLayer.exe
2844	DesktopLayer.exe
1452	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe
1452	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3712	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1452	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe
1452	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe
3712	iexplore.exe
3712	iexplore.exe
2136	IEXPLORE.EXE
2136	IEXPLORE.EXE
2136	IEXPLORE.EXE
2136	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 4532	1452	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe	81
PID 1452 wrote to memory of 4532	1452	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe	81
PID 1452 wrote to memory of 4532	1452	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe	81
PID 4532 wrote to memory of 2844	4532	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe	82
PID 4532 wrote to memory of 2844	4532	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe	82
PID 4532 wrote to memory of 2844	4532	2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe	82
PID 2844 wrote to memory of 3712	2844	DesktopLayer.exe	83
PID 2844 wrote to memory of 3712	2844	DesktopLayer.exe	83
PID 3712 wrote to memory of 2136	3712	iexplore.exe	84
PID 3712 wrote to memory of 2136	3712	iexplore.exe	84
PID 3712 wrote to memory of 2136	3712	iexplore.exe	84

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe
"C:\Users\Admin\AppData\Local\Temp\2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1452
- C:\Users\Admin\AppData\Local\Temp\2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe
  C:\Users\Admin\AppData\Local\Temp\2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4532
- - 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:2844
  - - 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:3712
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3712 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 471B
SHA256 ce1d98629a5ee640e18a270f48316ab3056255b8d6350313a3048832872ce900
MD5 e7b69c12cf8f3d6d51d6dd084612c7f6
SHA1 446dabac898c41b07473b0e1ef822cf7f52955d5
SHA512 5184c6f376eb6e669b86752bc6c19a1e1c055e4a18b6238e2f68f319077e576bce3e032368ab960d20338c447e1d7c3149c2591ff9d691ad33e62d3fe552e3a4
MD5 SHA1 SHA512

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7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 404B
SHA256 c4dd5b37657e2095ccfea6d56d427029083f7bd295fd80bb55d44e85dae319dd
MD5 3ac3cdc5e804653e75ccef16faf0a763
SHA1 9085672bf7cce3b0fa312463c794b5dbdaf57c0e
SHA512 bf2da92f2d7663cdada841733cb35b3ef4a21900a3b1d257ad8da29d008584bdb8cc7ea9b13e9b5e387711d43836c351e4f02c6b7102c8076488897af9531588
MD5 SHA1 SHA512

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\EO73ZF47\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
MD5 SHA1 SHA512 SSDEEP

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2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe

Path C:\Users\Admin\AppData\Local\Temp\2a447f07809dfb808fdd8d18605001df385cb16fa5dfdc9af592ee8c4d370004Srv.exe
Size 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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memory/1452-0-0x00000000002F0000-0x000000000054F000-memory.dmp

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memory/1452-17-0x00000000002F0000-0x000000000054F000-memory.dmp

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memory/2844-14-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2844-13-0x0000000000590000-0x0000000000591000-memory.dmp

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memory/2844-15-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4532-4-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4532-9-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4532-5-0x0000000000560000-0x000000000056F000-memory.dmp

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