ramnit | e25d37f0e34e022913ed08284f08fc44538cf8ce9aacf24f492774ef7445b40e

Analysis

max time kernel
118s
max time network
137s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 00:53

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

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
1656	c7453fccf113e393515bb6c6af7f0b73Srv.exe
2952	DesktopLayer.exe

Loads dropped DLL 4 IoCs

pid	Process
2240	c7453fccf113e393515bb6c6af7f0b73.exe
2240	c7453fccf113e393515bb6c6af7f0b73.exe
1656	c7453fccf113e393515bb6c6af7f0b73Srv.exe
1656	c7453fccf113e393515bb6c6af7f0b73Srv.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1656-10-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/memory/1656-21-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/memory/2952-28-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/memory/2952-26-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxCBD.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 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "3"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{37BA2831-E19D-11EE-AB41-FA5112F1BCBF} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "416539456"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\DefaultIcon	c7453fccf113e393515bb6c6af7f0b73.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wab	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf\ = "vcard_wab_auto_file"	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf\Content Type = "text/x-vcard"	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\vcard_wab_auto_file\DefaultIcon\ = "\"C:\\Program Files (x86)\\Windows Mail\\wab.exe\",1"	c7453fccf113e393515bb6c6af7f0b73.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\text/x-vcard	c7453fccf113e393515bb6c6af7f0b73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\text/x-vcard\Extension = ".vcf"	c7453fccf113e393515bb6c6af7f0b73.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2952	DesktopLayer.exe
2952	DesktopLayer.exe
2952	DesktopLayer.exe
2952	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2532	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2532	iexplore.exe
2532	iexplore.exe
2796	IEXPLORE.EXE
2796	IEXPLORE.EXE
2796	IEXPLORE.EXE
2796	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1656	c7453fccf113e393515bb6c6af7f0b73Srv.exe
2952	DesktopLayer.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 1656	2240	c7453fccf113e393515bb6c6af7f0b73.exe	28
PID 2240 wrote to memory of 1656	2240	c7453fccf113e393515bb6c6af7f0b73.exe	28
PID 2240 wrote to memory of 1656	2240	c7453fccf113e393515bb6c6af7f0b73.exe	28
PID 2240 wrote to memory of 1656	2240	c7453fccf113e393515bb6c6af7f0b73.exe	28
PID 1656 wrote to memory of 2952	1656	c7453fccf113e393515bb6c6af7f0b73Srv.exe	29
PID 1656 wrote to memory of 2952	1656	c7453fccf113e393515bb6c6af7f0b73Srv.exe	29
PID 1656 wrote to memory of 2952	1656	c7453fccf113e393515bb6c6af7f0b73Srv.exe	29
PID 1656 wrote to memory of 2952	1656	c7453fccf113e393515bb6c6af7f0b73Srv.exe	29
PID 2952 wrote to memory of 2532	2952	DesktopLayer.exe	30
PID 2952 wrote to memory of 2532	2952	DesktopLayer.exe	30
PID 2952 wrote to memory of 2532	2952	DesktopLayer.exe	30
PID 2952 wrote to memory of 2532	2952	DesktopLayer.exe	30
PID 2532 wrote to memory of 2796	2532	iexplore.exe	31
PID 2532 wrote to memory of 2796	2532	iexplore.exe	31
PID 2532 wrote to memory of 2796	2532	iexplore.exe	31
PID 2532 wrote to memory of 2796	2532	iexplore.exe	31

C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73.exe
"C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73.exe"
1⤵
- Loads dropped DLL
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
  C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:2952
  - - 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:2532
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2532 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2796

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

Loading Replay Monitor...

Downloads

94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Size 67KB
SHA256 b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78
MD5 753df6889fd7410a2e9fe333da83a429
SHA1 3c425f16e8267186061dd48ac1c77c122962456e
SHA512 9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444
SSDEEP 1536:4vHkVfDISE//aDY0WAXTF+0daIpyFQaqPZkatNjgkFOE4/JZZWnEn6:4vHKfMSeKFXdBcmnXkksE40E6
MD5 SHA1 SHA512 SSDEEP

Submit Download

94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Size 304B
SHA256 32cdafe39570e447679b3bf399aa284aaa352867c9aef365ee7719c4a80e4083
MD5 f200e2eb8d59d5c59fba04d6659b2899
SHA1 20793a820d5dda38223bb25d9ae3d5b64cf6c6e6
SHA512 2399ead92fa19b2089b5dbdf102d42f08800eea0a7cd0453bc25f02cee50f8e5f09af3ddcaa29c2aee32124e561ed8894dc32e1b24f75689f9815a34fcdcefce
MD5 SHA1 SHA512

Submit Download

94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Size 304B
SHA256 3087a728146b04f12b6f80b904a2bd91b3be90849b78e85d7756f5b666d6fd78
MD5 5d1c11fb2150e61980c813678efb3a3c
SHA1 6d1da4224ae1319a658f3d4aa67e356bfa50fc05
SHA512 d72583427f6151c1c85506abc0dbc94ec44e4816d933c22e56b3af2159bf7c5fcf0f03d3f59fd2fb491453166bedb9fb261b1e2c3dbd817f34c021f5e133c142
MD5 SHA1 SHA512

Submit Download

Tar29D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\Tar29D6.tmp
Size 175KB
SHA256 a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22
MD5 dd73cead4b93366cf3465c8cd32e2796
SHA1 74546226dfe9ceb8184651e920d1dbfb432b314e
SHA512 ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63
SSDEEP 1536:DAuJ+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mr:D9J+qTR0XCy/dmASru2Aijbd0
MD5 SHA1 SHA512 SSDEEP

Submit Download

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

Submit Download

memory/1656-10-0x0000000000400000-0x0000000000413000-memory.dmp

Download

memory/1656-21-0x0000000000400000-0x0000000000413000-memory.dmp

Download

memory/1656-509-0x0000000000400000-0x0000000000413000-memory.dmp

Download

memory/2240-9-0x0000000000400000-0x0000000000413000-memory.dmp

Download

memory/2240-398-0x0000000001000000-0x000000000101C000-memory.dmp

Download

memory/2240-0-0x0000000001000000-0x000000000101C000-memory.dmp

Download

memory/2240-12-0x0000000000400000-0x0000000000413000-memory.dmp

Download

memory/2952-24-0x0000000000230000-0x0000000000232000-memory.dmp

Download

memory/2952-30-0x0000000076F4F000-0x0000000076F50000-memory.dmp

Download

memory/2952-26-0x0000000000400000-0x0000000000413000-memory.dmp

Download

memory/2952-27-0x0000000000220000-0x0000000000221000-memory.dmp

Download

memory/2952-28-0x0000000000400000-0x0000000000413000-memory.dmp

Download

memory/2952-510-0x0000000076F4F000-0x0000000076F50000-memory.dmp

Download