ramnit | c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1

General

Target

c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1.exe
Size

216KB
MD5

66b373d577a470e59415405cf2e87997
SHA1

cdf93674df1a4f27df7c89cebb0aeba1e8df9168
SHA256

c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1
SHA512

a72384e956bf0e9664b6347e21662c0f641058759652f332d470e622701b1d0f9e63d97c6b90131861bff511ecd98ee4fbad5e0708471415ae99d2d01f85fb4e
SSDEEP

3072:Ol6EgmJBkSju7dMIplpdWnWf1WYCPTkG8M8kkRqX66poLD8x8VnvupmYmcNovxG:O3BPju7B3zjNWlIG88k666qfVUFOpG

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
2524	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe
1624	WaterMark.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2524-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2524-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1624-20-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2524-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2524-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2524-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2524-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1624-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxB287.tmp	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4652	2424	WerFault.exe	86
3032	4780	WerFault.exe	83

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	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443888875"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2855410918"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2856504914"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D5BCA50C-D4DE-11EF-ADF2-CAFD856C81B1} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156459"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156459"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe
1624	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3820	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3820	iexplore.exe
3820	iexplore.exe
4672	IEXPLORE.EXE
4672	IEXPLORE.EXE
4672	IEXPLORE.EXE
4672	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2524	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe
1624	WaterMark.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4780 wrote to memory of 2524	4780	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1.exe	84
PID 4780 wrote to memory of 2524	4780	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1.exe	84
PID 4780 wrote to memory of 2524	4780	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1.exe	84
PID 2524 wrote to memory of 1624	2524	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe	85
PID 2524 wrote to memory of 1624	2524	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe	85
PID 2524 wrote to memory of 1624	2524	c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe	85
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 2424	1624	WaterMark.exe	86
PID 1624 wrote to memory of 4840	1624	WaterMark.exe	92
PID 1624 wrote to memory of 4840	1624	WaterMark.exe	92
PID 1624 wrote to memory of 3820	1624	WaterMark.exe	93
PID 1624 wrote to memory of 3820	1624	WaterMark.exe	93
PID 3820 wrote to memory of 4672	3820	iexplore.exe	94
PID 3820 wrote to memory of 4672	3820	iexplore.exe	94
PID 3820 wrote to memory of 4672	3820	iexplore.exe	94

C:\Users\Admin\AppData\Local\Temp\c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1.exe
"C:\Users\Admin\AppData\Local\Temp\c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Users\Admin\AppData\Local\Temp\c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe
  C:\Users\Admin\AppData\Local\Temp\c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Program Files (x86)\Microsoft\WaterMark.exe
    "C:\Program Files (x86)\Microsoft\WaterMark.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:1624
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      4⤵
      PID:2424
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2424 -s 204
        5⤵
        Program crash
        
        PID:4652
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      PID:4840
  - - 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:3820
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3820 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 336
  2⤵
  - Program crash
  PID:3032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2424 -ip 2424
1⤵
PID:4212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4780 -ip 4780
1⤵
PID:2440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

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
37827a5b375c40c1d7c482099e06c5bb

SHA1
48a43de39625e410113ec4d2d3e355535c7163a9

SHA256
ffbd974e64098b8a4b5abe5633fe019780fb5eb4fb52418810fbbdc50084ef51

SHA512
e14bdded02c844462222ce326d91cfc2403f2fb164911a7b1401cb5dcb29c804383cf554304a5ea8465d743ef2f0fa78e6cba3f064dad02cd00076c1ac5f843e

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

Filesize
404B

MD5
1befc8d4044aa968efdff46fab2be057

SHA1
e0f658c6ceece16c8cdbcf462bbd6c22650d010b

SHA256
927c8fa14c046c27ad26bfed3f57baf2ee47d6e87913a0b5fe1c2ca2f2ee2caa

SHA512
aebe6960516adde5b77e411947a8db99779cd52989e6b0352f714f63606575041d3f028671128ccd94f17e1a4b8ce41573e389d04fa0392abaa87aa9644dc0c7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\c72381ca276d8fb461b48bc0ef6e052e5ead112efc40d3998467042f4a7bd8e1mgr.exe

Filesize
59KB

MD5
a2140ffa40095f183b9391c0d3173462

SHA1
114f9b32c8c3b443bc6b6d136e5367160f04597d

SHA256
a816e9d9ac773fc178756269ac79c93f61c33b8f4c92fca08e89b1eb31fe2b53

SHA512
037ff28bb852c8ded8c8a980b65e32eaad8f6a3bd33fb122f097507bc4a756b4c34b8bc37ffa581ed21e29de21a84af279f5fc6cfecf87e5d4bd2bc955d4804b

Download Submit
memory/1624-23-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/1624-21-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/1624-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1624-20-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2524-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2524-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2524-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2524-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2524-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2524-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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