ramnit | f036dd942a0dd135e5f514e70d70cc3177c5be888ea9369643848ea560e5cbd2

Analysis

max time kernel
137s
max time network
177s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2023 21:28

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General

Target

NEAS.058aee853bc70539b973a7f929a54b10_JC.dll
Size

92KB
MD5

058aee853bc70539b973a7f929a54b10
SHA1

2db62804312e926d0b22867fa812f12d227c4cbd
SHA256

f036dd942a0dd135e5f514e70d70cc3177c5be888ea9369643848ea560e5cbd2
SHA512

72359c47c8a7079b192215fdf6780dd8371495ab8464cce2c9ae523528601562b35e593b7ae751523f6db713484a8185e78e0a6b80af82221a66b410de23732b
SSDEEP

1536:VNP0+uTEX7OpopI4SmRCQlMPOpFvyKHoKXCNSStCtduJY:38+tYopjSmRCW6OLveKyNSgK

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
964	rundll32Srv.exe
5064	DesktopLayer.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/964-7-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/964-11-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/5064-19-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4496.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3848	4492	WerFault.exe	84

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "405735074"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3947109501"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3947109501"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\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-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31067625"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31067625"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{14D79128-79DD-11EE-BEE0-4AC2F9E44820} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4019139885"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31067625"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
428	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
428	iexplore.exe
428	iexplore.exe
3636	IEXPLORE.EXE
3636	IEXPLORE.EXE
3636	IEXPLORE.EXE
3636	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 4492	396	rundll32.exe	84
PID 396 wrote to memory of 4492	396	rundll32.exe	84
PID 396 wrote to memory of 4492	396	rundll32.exe	84
PID 4492 wrote to memory of 964	4492	rundll32.exe	88
PID 4492 wrote to memory of 964	4492	rundll32.exe	88
PID 4492 wrote to memory of 964	4492	rundll32.exe	88
PID 964 wrote to memory of 5064	964	rundll32Srv.exe	90
PID 964 wrote to memory of 5064	964	rundll32Srv.exe	90
PID 964 wrote to memory of 5064	964	rundll32Srv.exe	90
PID 5064 wrote to memory of 428	5064	DesktopLayer.exe	92
PID 5064 wrote to memory of 428	5064	DesktopLayer.exe	92
PID 428 wrote to memory of 3636	428	iexplore.exe	97
PID 428 wrote to memory of 3636	428	iexplore.exe	97
PID 428 wrote to memory of 3636	428	iexplore.exe	97

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.058aee853bc70539b973a7f929a54b10_JC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.058aee853bc70539b973a7f929a54b10_JC.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4492
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:964
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:5064
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:428
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:428 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3636
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 616
    3⤵
    - Program crash
    PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4492 -ip 4492
1⤵
PID:1356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
52KB

MD5
17efb7e40d4cadaf3a4369435a8772ec

SHA1
eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

SHA256
f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

SHA512
522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
52KB

MD5
17efb7e40d4cadaf3a4369435a8772ec

SHA1
eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

SHA256
f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

SHA512
522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5PSY110O\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
52KB

MD5
17efb7e40d4cadaf3a4369435a8772ec

SHA1
eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

SHA256
f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

SHA512
522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
52KB

MD5
17efb7e40d4cadaf3a4369435a8772ec

SHA1
eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

SHA256
f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

SHA512
522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

Download Submit
memory/964-5-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/964-6-0x0000000000550000-0x0000000000552000-memory.dmp

Filesize
8KB

Download
memory/964-7-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/964-11-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4492-21-0x0000000010000000-0x0000000010017000-memory.dmp

Filesize
92KB

Download
memory/4492-1-0x0000000010000000-0x0000000010017000-memory.dmp

Filesize
92KB

Download
memory/5064-12-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/5064-19-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/5064-18-0x0000000077A32000-0x0000000077A33000-memory.dmp

Filesize
4KB

Download
memory/5064-17-0x0000000077A32000-0x0000000077A33000-memory.dmp

Filesize
4KB

Download
memory/5064-16-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download