ramnit | aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7

General

Target

aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe
Size

92KB
MD5

ff660c5cec10fea5ef82b298f13d1328
SHA1

7fa39fec87ee12e1b0bf028eb0ee7778718b9fcb
SHA256

aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7
SHA512

dc4362074720f1ad9be13c3959035335baeb18c412c1ff224668747aef6e69352966bcd1c0fb2c518629aa858af5b5c97fb6f99d35706fe4a52631f4b375a00a
SSDEEP

1536:DVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApXn:bnxwgxgfR/DVG7wBpXn

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 1 IoCs

pid	Process
496	WaterMark.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/384-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/384-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/384-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/384-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/384-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/384-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/384-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/496-25-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/496-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/496-33-0x0000000000400000-0x0000000000431000-memory.dmp	upx
behavioral2/memory/496-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px88B8.tmp	aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1468	1888	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 3 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	aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.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
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 (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\VersionManager	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\Main	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
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "922797423"	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
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\GPU	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\AdminActive\{62783A81-D8AF-11EF-ADF2-468C69F2ED48} = "0"	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\DomainSuggestion\FileNames\	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
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	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\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "922015603"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157436"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157436"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444308300"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe
496	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	496	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3700	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3700	iexplore.exe
3700	iexplore.exe
748	IEXPLORE.EXE
748	IEXPLORE.EXE
748	IEXPLORE.EXE
748	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
384	aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe
496	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 496	384	aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe	82
PID 384 wrote to memory of 496	384	aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe	82
PID 384 wrote to memory of 496	384	aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe	82
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 1888	496	WaterMark.exe	83
PID 496 wrote to memory of 3700	496	WaterMark.exe	87
PID 496 wrote to memory of 3700	496	WaterMark.exe	87
PID 496 wrote to memory of 440	496	WaterMark.exe	88
PID 496 wrote to memory of 440	496	WaterMark.exe	88
PID 3700 wrote to memory of 748	3700	iexplore.exe	89
PID 3700 wrote to memory of 748	3700	iexplore.exe	89
PID 3700 wrote to memory of 748	3700	iexplore.exe	89

C:\Users\Admin\AppData\Local\Temp\aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe
"C:\Users\Admin\AppData\Local\Temp\aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:384
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - 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:496
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:1888
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 204
      4⤵
      Program crash
      PID:1468
- - 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:3700
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3700 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:748
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1888 -ip 1888
1⤵
PID:1300

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:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
92KB

MD5
ff660c5cec10fea5ef82b298f13d1328

SHA1
7fa39fec87ee12e1b0bf028eb0ee7778718b9fcb

SHA256
aaa17fcf12dde8b69cae05f4e5bbf6129d1bc010ad92ea7d56ec9ea74aa65dd7

SHA512
dc4362074720f1ad9be13c3959035335baeb18c412c1ff224668747aef6e69352966bcd1c0fb2c518629aa858af5b5c97fb6f99d35706fe4a52631f4b375a00a

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

Filesize
471B

MD5
2c48c73220d62a8faffe599e95896274

SHA1
452cd4222360fe7e881055d815ec65a2bbac564b

SHA256
35a3978f9dea3056b0c4a0a1945d785bb7a0022484782f414fa9ffa04f3d5967

SHA512
6547f2798297acc7ac11506328ef05f29074655f3e5a60adb188106c769806a2b1a8a15c7bd38c39da560df7df953798561398245667095536fc5748692cc9d8

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

Filesize
404B

MD5
1bafd205fdf6ca24233c2ee03f6f3e56

SHA1
b4207416aedec6e384f4031a06214937d620638c

SHA256
21e6daeec99c796da4b6b0ed31b916e7338a8742346c484ba6638d94fa55ee80

SHA512
1b736c408aec73c59e194c6132c517b1b619bea345b31acfd19650c800d511f6680f27311cf09eb0252e6e6bc81658ffcd11e8f64ba2ee028d9c6c1dbeb14244

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
memory/384-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/384-7-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/384-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/384-18-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/384-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/384-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/384-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/384-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/384-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/384-1-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/384-2-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/384-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/496-28-0x0000000077B92000-0x0000000077B93000-memory.dmp

Filesize
4KB

Download
memory/496-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/496-34-0x0000000077B92000-0x0000000077B93000-memory.dmp

Filesize
4KB

Download
memory/496-33-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/496-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/496-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/496-27-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/496-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1888-30-0x0000000001230000-0x0000000001231000-memory.dmp

Filesize
4KB

Download
memory/1888-31-0x0000000001210000-0x0000000001211000-memory.dmp

Filesize
4KB

Download

Analysis

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