ramnit | 1a2a7c809c05805f7b5b02c4856415f8c350659b58e69a7bf178ff3fc4651eee

General

Target

JaffaCakes118_827810045474c584f000c7c121ac76f4.exe
Size

95KB
MD5

827810045474c584f000c7c121ac76f4
SHA1

ca0439b44f0b124d3514806af0de945873a5101f
SHA256

1a2a7c809c05805f7b5b02c4856415f8c350659b58e69a7bf178ff3fc4651eee
SHA512

fdd2af88aa2ef8596977beef2e9e11a64e48ee7e62a1a5b0e064b59689cebac5a38033d6455d071ec2aab1c1c08520cf6d4687bb443a33d794ef442a7daa9473
SSDEEP

768:R06R0UrgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9ICW:3R0jn3Pc0LCH9MtbvabUDzJYWu3B

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
1940	WaterMark.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4616-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4616-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4616-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4616-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1940-22-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1940-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4616-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4616-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4616-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1940-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1940-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px274C.tmp	JaffaCakes118_827810045474c584f000c7c121ac76f4.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_827810045474c584f000c7c121ac76f4.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_827810045474c584f000c7c121ac76f4.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2856	3840	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	JaffaCakes118_827810045474c584f000c7c121ac76f4.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{545B3C6B-D451-11EF-9361-CAFD856C81B1} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "683672207"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443828099"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "685859800"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156318"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156318"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe
1940	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1380	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1380	iexplore.exe
1380	iexplore.exe
3816	IEXPLORE.EXE
3816	IEXPLORE.EXE
3816	IEXPLORE.EXE
3816	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4616	JaffaCakes118_827810045474c584f000c7c121ac76f4.exe
1940	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4616 wrote to memory of 1940	4616	JaffaCakes118_827810045474c584f000c7c121ac76f4.exe	82
PID 4616 wrote to memory of 1940	4616	JaffaCakes118_827810045474c584f000c7c121ac76f4.exe	82
PID 4616 wrote to memory of 1940	4616	JaffaCakes118_827810045474c584f000c7c121ac76f4.exe	82
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 3840	1940	WaterMark.exe	83
PID 1940 wrote to memory of 1380	1940	WaterMark.exe	87
PID 1940 wrote to memory of 1380	1940	WaterMark.exe	87
PID 1940 wrote to memory of 4704	1940	WaterMark.exe	88
PID 1940 wrote to memory of 4704	1940	WaterMark.exe	88
PID 1380 wrote to memory of 3816	1380	iexplore.exe	89
PID 1380 wrote to memory of 3816	1380	iexplore.exe	89
PID 1380 wrote to memory of 3816	1380	iexplore.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_827810045474c584f000c7c121ac76f4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_827810045474c584f000c7c121ac76f4.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4616
- 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:1940
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3840
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3840 -s 204
      4⤵
      Program crash
      PID:2856
- - 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:1380
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1380 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3816
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:4704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3840 -ip 3840
1⤵
PID:536

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
95KB

MD5
827810045474c584f000c7c121ac76f4

SHA1
ca0439b44f0b124d3514806af0de945873a5101f

SHA256
1a2a7c809c05805f7b5b02c4856415f8c350659b58e69a7bf178ff3fc4651eee

SHA512
fdd2af88aa2ef8596977beef2e9e11a64e48ee7e62a1a5b0e064b59689cebac5a38033d6455d071ec2aab1c1c08520cf6d4687bb443a33d794ef442a7daa9473

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

Filesize
471B

MD5
eec6845b257a7c8f95b25485b3666ae4

SHA1
79e6f675b80bc885bda844e766088a62d84ded75

SHA256
70a3cfb8ce21db27ecfb8143c459eda8218c5f7a0db0945c3117cbf5c180eb6d

SHA512
b6ceaabb99fb2011f9dd6ae4b59e3435c397204fcd4b3168e65d6616a85d49d13f80cd11a191e223609538d4f144103757f730c61acd21f4053bb5ecb6fb4f1f

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

Filesize
404B

MD5
8b3ccd4f0be892e8330b27e34ae273f5

SHA1
141c79e45bd791227079c00a6e3eec62f49d8d66

SHA256
26fda816e80f8b35cb08ce9583e28e627ae49766cfa5a82277b6b42e26f5db25

SHA512
b8dda506871a5902bc1e8c4de6a62ae97f2785165c514e0c05fc79b2a657e30597d8351b788f49a95b450bdbe0c9ab2f9ca8ea70c38d47ab2472a64b40d41bdb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\JAZ6MGFU\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1940-33-0x00000000774D2000-0x00000000774D3000-memory.dmp

Filesize
4KB

Download
memory/1940-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1940-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1940-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/1940-22-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1940-28-0x00000000774D2000-0x00000000774D3000-memory.dmp

Filesize
4KB

Download
memory/1940-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1940-25-0x0000000000900000-0x0000000000901000-memory.dmp

Filesize
4KB

Download
memory/3840-31-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/3840-30-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/4616-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4616-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4616-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4616-8-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/4616-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4616-7-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4616-0-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4616-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4616-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4616-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4616-2-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4616-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download

Analysis

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