ramnit | 1856d5868cedbb15af056437de1a2345f12e8002ca0a8c877d2dfb5237e1bdf8

General

Target

JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe
Size

123KB
MD5

664516c466d3bb9f2d047bb4dab59470
SHA1

5c0d9fc87526c86a55355cb37a8d1e0c68fd962e
SHA256

1856d5868cedbb15af056437de1a2345f12e8002ca0a8c877d2dfb5237e1bdf8
SHA512

8329d57abd18f7139959e5702896c78bf13defea0ce4bda87c699c4b0ed1963c48c7adefda8ff3d17f460675a89e366f725362e0d64b1e21a93a5544803ae236
SSDEEP

768:T06R0UtgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9ICW:RR0Zn3Pc0LCH9MtbvabUDzJYWu3B

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
4740	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1236-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1236-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1236-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1236-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1236-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1236-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1236-18-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4740-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4740-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4740-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4740-34-0x0000000000400000-0x000000000045A000-memory.dmp	upx
behavioral2/memory/4740-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxBA67.tmp	JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4780	3520	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	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156182"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2794993239"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D1FEF9F6-D3C9-11EF-AF2A-D6A59BC41F9D} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2793430036"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443769898"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156182"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe
4740	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4740	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2032	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2032	iexplore.exe
2032	iexplore.exe
2004	IEXPLORE.EXE
2004	IEXPLORE.EXE
2004	IEXPLORE.EXE
2004	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1236	JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe
4740	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 4740	1236	JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe	82
PID 1236 wrote to memory of 4740	1236	JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe	82
PID 1236 wrote to memory of 4740	1236	JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe	82
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 3520	4740	WaterMark.exe	83
PID 4740 wrote to memory of 2032	4740	WaterMark.exe	89
PID 4740 wrote to memory of 2032	4740	WaterMark.exe	89
PID 4740 wrote to memory of 1884	4740	WaterMark.exe	90
PID 4740 wrote to memory of 1884	4740	WaterMark.exe	90
PID 2032 wrote to memory of 2004	2032	iexplore.exe	92
PID 2032 wrote to memory of 2004	2032	iexplore.exe	92
PID 2032 wrote to memory of 2004	2032	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_664516c466d3bb9f2d047bb4dab59470.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1236
- 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:4740
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3520
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3520 -s 204
      4⤵
      Program crash
      PID:4780
- - 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:2032
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2032 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2004
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:1884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3520 -ip 3520
1⤵
PID:3264

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
123KB

MD5
664516c466d3bb9f2d047bb4dab59470

SHA1
5c0d9fc87526c86a55355cb37a8d1e0c68fd962e

SHA256
1856d5868cedbb15af056437de1a2345f12e8002ca0a8c877d2dfb5237e1bdf8

SHA512
8329d57abd18f7139959e5702896c78bf13defea0ce4bda87c699c4b0ed1963c48c7adefda8ff3d17f460675a89e366f725362e0d64b1e21a93a5544803ae236

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

Filesize
471B

MD5
9e22a9c34466faf7bc9cf642444b3f30

SHA1
0ac45262532cce40083cc9049fb12d4efb06c01f

SHA256
57569469879a3144b391cf9def258ad9ef29d7fd1d3d70a28cfb506443d7a119

SHA512
c60649fb0ecdd14c9a6d8f9ea7ac4356b24a5e1a238705bbc8294b72ea2fda21965af200746ae20dd5f45e386fc30e2189de6007e08ff3d7ec72b8dfc39435fe

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

Filesize
404B

MD5
97aa85a98e0e420685572a1bc12429e1

SHA1
81e082bb30e346641658b77bb64c1179f3538251

SHA256
f1ad3673c0eb924fb678db901ff99b2fbd64f63127980ef83d95c7b44b580066

SHA512
e21d3e977b69914244280bd3224c5c334c936aeb0235d3c59b2c8ffef360abd63815a1f535a25372eaa953fd398ce0f6bdd60fb3504630092b478fac393d32ff

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1236-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1236-0-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1236-7-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1236-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1236-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1236-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1236-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1236-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/1236-8-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1236-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1236-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1236-2-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3520-32-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/3520-31-0x00000000008C0000-0x00000000008C1000-memory.dmp

Filesize
4KB

Download
memory/4740-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4740-28-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/4740-33-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4740-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4740-35-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Filesize
4KB

Download
memory/4740-34-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/4740-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4740-29-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Filesize
4KB

Download
memory/4740-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4740-19-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download

Analysis

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