ramnit | a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5

Analysis

max time kernel
93s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 13:41

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General

Target

a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe
Size

198KB
MD5

f0cdb7f523a4dab9f37ab1ceb6b83527
SHA1

0a48fd75acc08e9810fcdfb7cda674ddbe0a889f
SHA256

a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5
SHA512

ddb0c56cd6afb5fa88353add977710c6b532b82568f2329c400dff28ffdda05bf7324678a57c32ea6eca25ca06b832c041bd3f4fcef65f66f97dfd0ba2455798
SSDEEP

3072:i1ZntgK0+KH+lwOU3aO2ypNvG1rpvrRCRBgLVs9bwFPtj+5X4BIHk:8ZtZI+lwOUKO9G/vrWmV0Wek

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
4788	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe
1544	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b14-3.dat	upx
behavioral2/memory/4788-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4788-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1544-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1544-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1544-17-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7A50.tmp	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe

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	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31148809"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{837452B7-B6FC-11EF-AEE2-FA9F886F8D04} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1477595852"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "440603088"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1473532988"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1473532988"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31148809"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31148809"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3396	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4612	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe
4612	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe
3396	iexplore.exe
3396	iexplore.exe
3692	IEXPLORE.EXE
3692	IEXPLORE.EXE
3692	IEXPLORE.EXE
3692	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 4788	4612	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe	83
PID 4612 wrote to memory of 4788	4612	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe	83
PID 4612 wrote to memory of 4788	4612	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe	83
PID 4788 wrote to memory of 1544	4788	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe	84
PID 4788 wrote to memory of 1544	4788	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe	84
PID 4788 wrote to memory of 1544	4788	a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe	84
PID 1544 wrote to memory of 3396	1544	DesktopLayer.exe	85
PID 1544 wrote to memory of 3396	1544	DesktopLayer.exe	85
PID 3396 wrote to memory of 3692	3396	iexplore.exe	86
PID 3396 wrote to memory of 3692	3396	iexplore.exe	86
PID 3396 wrote to memory of 3692	3396	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe
"C:\Users\Admin\AppData\Local\Temp\a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Users\Admin\AppData\Local\Temp\a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe
  C:\Users\Admin\AppData\Local\Temp\a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4788
- - 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:1544
  - - 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:3396
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3396 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3692

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
87f8376b71b1fd35da4b511eff055888

SHA1
0c55fba0aa699282bbe4d129dd0ba16d4e377ce9

SHA256
a1383ed3b4f8967fb19f5b16bfe41eb3242b296ffc06c1098fbe1d1a04a7003f

SHA512
8556ed20a3d9daf8f74b2eceaab6a3773b69d5c9524ba8dbb8af1ad64b2235165e487c41646e357be5906aaa7f0f4c57ff8dc9ea2acc0c87f443d3ad083c9031

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

Filesize
404B

MD5
8f7d93641f0c2eebfd73b3efaca8ec4b

SHA1
9a0b4bfdc9c8c5758f5c352b331ea26b9e65ec13

SHA256
8a621fb817f4aa42f437817a68e89451cfe164dc86fb08aea4e75570ea90c6cd

SHA512
aa4a007ccfbe3ebe317255ed40be9512d7c61ab86c55cbdfc2b7f38962f3ce221a5f8cdafb4ec77752f2a2eeb7896e042180502f80ff819b7474823da48d7229

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\a4f150e5a058ff7bc265dc1c686d3b959315d30985b4164e1176b93470a018b5Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1544-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1544-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1544-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1544-13-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/4612-18-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4612-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4788-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4788-5-0x00000000005A0000-0x00000000005AF000-memory.dmp

Filesize
60KB

Download
memory/4788-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download