ramnit | 1b2313b5d6ed184d012ea11563c8ed2ce49f51653d11a046f42b47e0497a3c37

General

Target

JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe
Size

95KB
MD5

f7534aa08b26853633c0f45b05a6f405
SHA1

1d6fe7b050d2bb55b2d0c3343bb35430545cc431
SHA256

1b2313b5d6ed184d012ea11563c8ed2ce49f51653d11a046f42b47e0497a3c37
SHA512

55f6f98c64c14372720237a176cc77a8146a140d7830757fd071f813c72e9abea479900fac249f7cfa96513c936b001724e253653d366e9c78611f02dea91808
SSDEEP

768:d06R0UKzOgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9Y:7R0vxn3Pc0LCH9MtbvabUDzJYWu3B

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
1240	WaterMark.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1040-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1040-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1040-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1240-25-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1240-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1040-23-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral2/memory/1040-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1040-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1040-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1040-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1240-32-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral2/memory/1240-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1240-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1240-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px66A9.tmp	JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2308	3432	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	JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.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 (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2538933294"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2536589726"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{C2CC830A-D768-11EF-A7EA-622000771059} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444168016"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157109"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157109"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe
1240	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1240	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1424	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1424	iexplore.exe
1424	iexplore.exe
3560	IEXPLORE.EXE
3560	IEXPLORE.EXE
3560	IEXPLORE.EXE
3560	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1040	JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe
1240	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 1240	1040	JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe	83
PID 1040 wrote to memory of 1240	1040	JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe	83
PID 1040 wrote to memory of 1240	1040	JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe	83
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 3432	1240	WaterMark.exe	84
PID 1240 wrote to memory of 1424	1240	WaterMark.exe	89
PID 1240 wrote to memory of 1424	1240	WaterMark.exe	89
PID 1240 wrote to memory of 4540	1240	WaterMark.exe	90
PID 1240 wrote to memory of 4540	1240	WaterMark.exe	90
PID 1424 wrote to memory of 3560	1424	iexplore.exe	92
PID 1424 wrote to memory of 3560	1424	iexplore.exe	92
PID 1424 wrote to memory of 3560	1424	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f7534aa08b26853633c0f45b05a6f405.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1040
- 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:1240
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3432
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 204
      4⤵
      Program crash
      PID:2308
- - 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:1424
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1424 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3560
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:4540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3432 -ip 3432
1⤵
PID:3500

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
f7534aa08b26853633c0f45b05a6f405

SHA1
1d6fe7b050d2bb55b2d0c3343bb35430545cc431

SHA256
1b2313b5d6ed184d012ea11563c8ed2ce49f51653d11a046f42b47e0497a3c37

SHA512
55f6f98c64c14372720237a176cc77a8146a140d7830757fd071f813c72e9abea479900fac249f7cfa96513c936b001724e253653d366e9c78611f02dea91808

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

Filesize
471B

MD5
0ada2095c461df5a751955aa41dd491e

SHA1
8366c54b31e1ddc8016aa22aab8c83f73c690810

SHA256
80cd542688ed3a45669b53243c3f4922d6eb21a34d8dfeebc6c101484d3bac09

SHA512
135991affe343d4358bb15a693effa7a6813d6715e555729d2aa04a98555e13fded55d3100a41a92a5beb57c68fbdacb199a3e66407944e37880b28d42d79e7c

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

Filesize
404B

MD5
ad4967da5d9292fab36a3eac1fa732c9

SHA1
bfd4ee1366de45f26abedd99a9893dc50daeb91c

SHA256
b4b1ead02e6e801540c107be69caf7a54317ca43c2203c5631d560cf8c295b13

SHA512
46ea4931e7aa2e45f7f7b9871c837578987c7a95d02598dad402fe40fede7392e614cfd5e98eebce2644872c5a08ef194e0cef66a9cc236a565d468bee610e7e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1040-27-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/1040-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1040-6-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1040-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1040-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1040-7-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download
memory/1040-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1040-1-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/1040-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1040-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1040-0-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1040-23-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1040-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1240-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1240-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1240-26-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/1240-32-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1240-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1240-36-0x0000000077D72000-0x0000000077D73000-memory.dmp

Filesize
4KB

Download
memory/1240-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1240-33-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/1240-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1240-28-0x0000000077D72000-0x0000000077D73000-memory.dmp

Filesize
4KB

Download
memory/3432-30-0x0000000000700000-0x0000000000701000-memory.dmp

Filesize
4KB

Download
memory/3432-31-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download

Analysis

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