ramnit | 6b82877273d33819a363afe193e4fdd4c0798c3192933ada6ade9ca0d1523e3d

Analysis

max time kernel
152s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 18:06

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General

Target
c40352658eaf2a5b665918fa4b6e8ab2.exe
Size 263KB
Sample240312-wpqfpshf88
SHA256 6b82877273d33819a363afe193e4fdd4c0798c3192933ada6ade9ca0d1523e3d
MD5 c40352658eaf2a5b665918fa4b6e8ab2
SHA1 1dc9ed67d61563132ea01a8c8546691adf5922c4
SHA512 de34f05fcc9c6ca2065a7a62bce1a99ec0a052d98c7dfd01d13db341b9688908e0fd2493451483d263dc0d6759be2f83c144875dd9dc02499170073fb7e24572
SSDEEP 6144:JdMITlD2SOe05HFNSwrE4jdfWNJAhOUUxp:JdtTlD2SOZVFAwvjtWbUUP
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

ramnit banker spyware stealer trojan worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	c40352658eaf2a5b665918fa4b6e8ab2.exe

Executes dropped EXE 1 IoCs

pid	Process
3176	yrmvxatpojjjtnwm.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
928	1848	WerFault.exe	97
4024	3864	WerFault.exe	105

Modifies Internet Explorer settings 1 TTPs 17 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{4400055D-E09B-11EE-B9F7-7A73248FA209} = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "416428690"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
652	Process not Found

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe
Token: SeDebugPrivilege	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe
Token: SeSecurityPrivilege	3176	yrmvxatpojjjtnwm.exe
Token: SeLoadDriverPrivilege	3176	yrmvxatpojjjtnwm.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4704	IEXPLORE.EXE
4704	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4704	IEXPLORE.EXE
4704	IEXPLORE.EXE
4704	IEXPLORE.EXE
4704	IEXPLORE.EXE
1844	IEXPLORE.EXE
1844	IEXPLORE.EXE
1844	IEXPLORE.EXE
1844	IEXPLORE.EXE
1844	IEXPLORE.EXE
1844	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 1848	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	97
PID 3276 wrote to memory of 2908	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	101
PID 3276 wrote to memory of 2908	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	101
PID 3276 wrote to memory of 2908	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	101
PID 2908 wrote to memory of 4704	2908	iexplore.exe	102
PID 2908 wrote to memory of 4704	2908	iexplore.exe	102
PID 4704 wrote to memory of 1844	4704	IEXPLORE.EXE	103
PID 4704 wrote to memory of 1844	4704	IEXPLORE.EXE	103
PID 4704 wrote to memory of 1844	4704	IEXPLORE.EXE	103
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3864	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	105
PID 3276 wrote to memory of 3520	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	109
PID 3276 wrote to memory of 3520	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	109
PID 3276 wrote to memory of 3520	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	109
PID 3520 wrote to memory of 3008	3520	iexplore.exe	111
PID 3520 wrote to memory of 3008	3520	iexplore.exe	111
PID 3276 wrote to memory of 3176	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	112
PID 3276 wrote to memory of 3176	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	112
PID 3276 wrote to memory of 3176	3276	c40352658eaf2a5b665918fa4b6e8ab2.exe	112

C:\Users\Admin\AppData\Local\Temp\c40352658eaf2a5b665918fa4b6e8ab2.exe
"C:\Users\Admin\AppData\Local\Temp\c40352658eaf2a5b665918fa4b6e8ab2.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3276
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  PID:1848
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 208
    3⤵
    - Program crash
    PID:928
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2908
- - C:\Program Files\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4704
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4704 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1844
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  PID:3864
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3864 -s 204
    3⤵
    - Program crash
    PID:4024
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3520
- - C:\Program Files\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
    3⤵
    - Modifies Internet Explorer settings
    PID:3008
- C:\Users\Admin\AppData\Local\Temp\yrmvxatpojjjtnwm.exe
  "C:\Users\Admin\AppData\Local\Temp\yrmvxatpojjjtnwm.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1848 -ip 1848
1⤵
PID:1684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3864 -ip 3864
1⤵
PID:4744

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4160 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
1⤵
PID:1460

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

yrmvxatpojjjtnwm.exe

Path C:\Users\Admin\AppData\Local\Temp\yrmvxatpojjjtnwm.exe
Size 139KB
SHA256 f7b46ae8613eca5de5096cc2a94014147a7694a059ecbb90cf31cdfa11c4562c
MD5 f4f708da6b6eecb6b25e289b777592b7
SHA1 91400f0503b46ed5936b3e2cd9b705ff0d97da10
SHA512 a4cc679bb45e5bbb3c4fcece707d9cc2fe2e4f0c8eb893e32191ac2e32696f98b39138809fe1dfb2e0d2a2cbba116073b3872a219c1400e1a440f8f4b44c6d1f
SSDEEP 3072:WJ6dMMfkqGIlxvu/JzMejSO1sJ6CaKMFFk8jwaaHw7Koj4r+NSwBxE4l0Rk+6Z2:JdMITlD2SOe05HFNSwrE4jd2
MD5 SHA1 SHA512 SSDEEP

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yrmvxatpojjjtnwm.exe

Path C:\Users\Admin\AppData\Local\Temp\yrmvxatpojjjtnwm.exe
Size 263KB
SHA256 6b82877273d33819a363afe193e4fdd4c0798c3192933ada6ade9ca0d1523e3d
MD5 c40352658eaf2a5b665918fa4b6e8ab2
SHA1 1dc9ed67d61563132ea01a8c8546691adf5922c4
SHA512 de34f05fcc9c6ca2065a7a62bce1a99ec0a052d98c7dfd01d13db341b9688908e0fd2493451483d263dc0d6759be2f83c144875dd9dc02499170073fb7e24572
SSDEEP 6144:JdMITlD2SOe05HFNSwrE4jdfWNJAhOUUxp:JdtTlD2SOZVFAwvjtWbUUP
MD5 SHA1 SHA512 SSDEEP

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memory/1848-8-0x00000000003C0000-0x00000000003C1000-memory.dmp

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memory/1848-9-0x00000000003A0000-0x00000000003A1000-memory.dmp

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memory/3176-34-0x0000000000400000-0x000000000043A124-memory.dmp

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memory/3176-31-0x0000000000400000-0x000000000043A124-memory.dmp

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memory/3176-32-0x0000000002060000-0x0000000002062000-memory.dmp

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memory/3176-29-0x0000000000400000-0x000000000043A124-memory.dmp

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memory/3276-10-0x0000000000400000-0x000000000043A124-memory.dmp

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memory/3276-12-0x00000000006F0000-0x00000000006F2000-memory.dmp

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memory/3276-16-0x0000000000400000-0x000000000043A124-memory.dmp

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memory/3276-18-0x0000000000400000-0x000000000043A124-memory.dmp

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memory/3276-19-0x00000000777C2000-0x00000000777C3000-memory.dmp

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memory/3276-0-0x0000000000400000-0x000000000043A124-memory.dmp

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memory/3276-4-0x0000000000700000-0x0000000000701000-memory.dmp

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memory/3276-5-0x00000000777C2000-0x00000000777C3000-memory.dmp

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memory/3276-6-0x0000000000710000-0x0000000000711000-memory.dmp

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memory/3276-2-0x00000000006F0000-0x00000000006F2000-memory.dmp

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memory/3276-1-0x0000000000400000-0x000000000043A124-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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