ramnit | e25d37f0e34e022913ed08284f08fc44538cf8ce9aacf24f492774ef7445b40e

Analysis

max time kernel
146s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 00:53

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General

Target
c7453fccf113e393515bb6c6af7f0b73.exe
Size 98KB
Sample240314-a8mchaee6x
SHA256 e25d37f0e34e022913ed08284f08fc44538cf8ce9aacf24f492774ef7445b40e
MD5 c7453fccf113e393515bb6c6af7f0b73
SHA1 29bc0b27594dc06a1c34be2de5a94c9bba8a55be
SHA512 9d2343325ec30bc700448bf0a8dcb4ea11cc7acbde9f31ee8bc0b047ff1816f61de2595a373f9367fdff425a01ff56d70e889389149e95874fbc18ecac1f9d62
SSDEEP 3072:4BKwcvdwuxdWikJlCpUG+BEQ56XO3VuDm9TkeH:4BKwcvdnECmG6VuOYaOeH
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
620	c7453fccf113e393515bb6c6af7f0b73Srv.exe
4748	DesktopLayer.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/620-7-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/620-14-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/4748-19-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxA160.tmp	c7453fccf113e393515bb6c6af7f0b73Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	c7453fccf113e393515bb6c6af7f0b73Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	c7453fccf113e393515bb6c6af7f0b73Srv.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "472282137"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "475094861"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31094186"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31094186"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "475249748"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "417142587"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\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-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{47054E14-E19D-11EE-96FD-D65EEEF40ABB} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "472282137"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31094186"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31094186"	iexplore.exe

Modifies registry class 13 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wab	c7453fccf113e393515bb6c6af7f0b73.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf	c7453fccf113e393515bb6c6af7f0b73.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\DefaultIcon	c7453fccf113e393515bb6c6af7f0b73.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\text/x-vcard	c7453fccf113e393515bb6c6af7f0b73.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000_Classes\Local Settings	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf\ = "vcard_wab_auto_file"	c7453fccf113e393515bb6c6af7f0b73.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\ = "vCard File"	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\text/x-vcard\Extension = ".vcf"	c7453fccf113e393515bb6c6af7f0b73.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\shell\open\command	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\shell\open\command\ = "\"C:\\Program Files (x86)\\Windows Mail\\wab.exe\" /vcard %1"	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\DefaultIcon\ = "\"C:\\Program Files (x86)\\Windows Mail\\wab.exe\",1"	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf\Content Type = "text/x-vcard"	c7453fccf113e393515bb6c6af7f0b73.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4748	DesktopLayer.exe
4748	DesktopLayer.exe
4748	DesktopLayer.exe
4748	DesktopLayer.exe
4748	DesktopLayer.exe
4748	DesktopLayer.exe
4748	DesktopLayer.exe
4748	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3116	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3116	iexplore.exe
3116	iexplore.exe
1544	IEXPLORE.EXE
1544	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 620	4672	c7453fccf113e393515bb6c6af7f0b73.exe	88
PID 4672 wrote to memory of 620	4672	c7453fccf113e393515bb6c6af7f0b73.exe	88
PID 4672 wrote to memory of 620	4672	c7453fccf113e393515bb6c6af7f0b73.exe	88
PID 620 wrote to memory of 4748	620	c7453fccf113e393515bb6c6af7f0b73Srv.exe	91
PID 620 wrote to memory of 4748	620	c7453fccf113e393515bb6c6af7f0b73Srv.exe	91
PID 620 wrote to memory of 4748	620	c7453fccf113e393515bb6c6af7f0b73Srv.exe	91
PID 4748 wrote to memory of 3116	4748	DesktopLayer.exe	92
PID 4748 wrote to memory of 3116	4748	DesktopLayer.exe	92
PID 3116 wrote to memory of 1544	3116	iexplore.exe	94
PID 3116 wrote to memory of 1544	3116	iexplore.exe	94
PID 3116 wrote to memory of 1544	3116	iexplore.exe	94

C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73.exe
"C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73.exe"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
  C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:620
- - 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:4748
  - - 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:3116
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3116 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1544

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

ver2BBE.tmp

Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver2BBE.tmp
Size 15KB
SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
MD5 1a545d0052b581fbb2ab4c52133846bc
SHA1 62f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA512 bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
SSDEEP 384:79Jv9DF9/C9qc9/J9V791T9TK9Xf9Nm9xQ95a9BR9fV:79Jv9DF9/C9qc9/J9V791T9TK9Xf9NmT
MD5 SHA1 SHA512 SSDEEP

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TMWGKKVJ\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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c7453fccf113e393515bb6c6af7f0b73Srv.exe

Path C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
Size 52KB
SHA256 f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386
MD5 17efb7e40d4cadaf3a4369435a8772ec
SHA1 eb9302063ac2ab599ae93aaa1e45b88bbeacbca2
SHA512 522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450
SSDEEP 1536:c3j72srzVRv7Kf4AH+pdcDJVoYMeKTn1:UusXjTuoaD6eK71
MD5 SHA1 SHA512 SSDEEP

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memory/620-4-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/620-7-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/620-8-0x0000000000570000-0x0000000000572000-memory.dmp

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memory/620-14-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/4672-21-0x0000000001000000-0x000000000101C000-memory.dmp

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memory/4672-0-0x0000000001000000-0x000000000101C000-memory.dmp

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memory/4748-16-0x0000000002020000-0x0000000002021000-memory.dmp

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memory/4748-18-0x0000000077DE2000-0x0000000077DE3000-memory.dmp

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memory/4748-19-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/4748-17-0x0000000077DE2000-0x0000000077DE3000-memory.dmp

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