ramnit | 40db155ff13c3eb5120cc639c973a61668c1d5c17ee0d921048f1ddb6310b66d

General

Target

JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe
Size

123KB
MD5

06aac9ecd1caf0af7d0ad0820ba4df5a
SHA1

46aa4cb6b95ad41cbf7b472ca2857a6ae1dcb2f8
SHA256

40db155ff13c3eb5120cc639c973a61668c1d5c17ee0d921048f1ddb6310b66d
SHA512

013f998ed4a4ca0600ebed18231d47a68c2e5f7488f83e085d58be3daecf92050614de2c5c367e3a3f23678f9cbfd427957a068ddb5e42eb3c4d0492ea911639
SSDEEP

768:L06R0UKzOgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9Y:ZR0vxn3Pc0LCH9MtbvabUDzJYWu3B

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
4804	WaterMark.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4880-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4880-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4880-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4880-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4880-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4880-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4880-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4880-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4880-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4804-25-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4804-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4804-33-0x0000000000400000-0x00000000004AF000-memory.dmp	upx
behavioral2/memory/4804-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4804-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px86A5.tmp	JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2456	4380	WerFault.exe	84

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_06aac9ecd1caf0af7d0ad0820ba4df5a.exe

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157299"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{E8AFCE75-D826-11EF-B9D5-E24E87F0D14E} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3172555364"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444249684"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157299"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3174430425"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe
4804	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4804	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4836	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4836	iexplore.exe
4836	iexplore.exe
4344	IEXPLORE.EXE
4344	IEXPLORE.EXE
4344	IEXPLORE.EXE
4344	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4880	JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe
4804	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 4804	4880	JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe	83
PID 4880 wrote to memory of 4804	4880	JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe	83
PID 4880 wrote to memory of 4804	4880	JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe	83
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4380	4804	WaterMark.exe	84
PID 4804 wrote to memory of 4836	4804	WaterMark.exe	88
PID 4804 wrote to memory of 4836	4804	WaterMark.exe	88
PID 4804 wrote to memory of 3192	4804	WaterMark.exe	89
PID 4804 wrote to memory of 3192	4804	WaterMark.exe	89
PID 4836 wrote to memory of 4344	4836	iexplore.exe	90
PID 4836 wrote to memory of 4344	4836	iexplore.exe	90
PID 4836 wrote to memory of 4344	4836	iexplore.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06aac9ecd1caf0af7d0ad0820ba4df5a.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4880
- 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:4804
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:4380
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 204
      4⤵
      Program crash
      PID:2456
- - 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:4836
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4836 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:4344
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:3192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4380 -ip 4380
1⤵
PID:4940

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
06aac9ecd1caf0af7d0ad0820ba4df5a

SHA1
46aa4cb6b95ad41cbf7b472ca2857a6ae1dcb2f8

SHA256
40db155ff13c3eb5120cc639c973a61668c1d5c17ee0d921048f1ddb6310b66d

SHA512
013f998ed4a4ca0600ebed18231d47a68c2e5f7488f83e085d58be3daecf92050614de2c5c367e3a3f23678f9cbfd427957a068ddb5e42eb3c4d0492ea911639

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

Filesize
471B

MD5
fbd57568c7e969025fd7a77d6a9e5f45

SHA1
d8c221556c7dbeb55cbfe80a3006b6578e2ae4bd

SHA256
b820d32dc781d4a3af1cc452d73d4f57e1d963da4cdec90cb0660837657c8328

SHA512
c8d4e5b78e01570d02f0953bd0ebd818ed2985dfc5006ba39ce101693f1bc9de8550b9149d3028911ec5c1371b813f0bc8391d10294e04022b52a91c3d47f5cf

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

Filesize
404B

MD5
d309dae9e34ab6f17e435e67e9d23b7a

SHA1
ac9e75d0a2abbd7e1b4c424705ab064c4dcf00b2

SHA256
e42ca0d2fe0df5d1f812563ff09ce3c63dc6f4dfae14a3ae14d5787935f17de5

SHA512
69595b9b931182b2180bbd56707a9e50671570f5486705c81450444cd53ae6ffcd31dce16921e9489f54b8e3c2d51d393dfa4cf1dd3ac56ee04c6b37d27788fc

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/4380-31-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

Filesize
4KB

Download
memory/4380-30-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

Filesize
4KB

Download
memory/4804-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4804-33-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4804-35-0x0000000077622000-0x0000000077623000-memory.dmp

Filesize
4KB

Download
memory/4804-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4804-27-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/4804-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4804-29-0x0000000077622000-0x0000000077623000-memory.dmp

Filesize
4KB

Download
memory/4804-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4804-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-18-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/4880-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-0-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4880-6-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4880-7-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/4880-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4880-1-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download

Analysis

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