ramnit | 1094c1ad5f0ff0bfe72a6d343c7eb11a8cccf176e25f948db1ea0d97e5e9edaa

General

Target

JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe
Size

93KB
MD5

a9cabbecd44d3fdef17107777d59974e
SHA1

5435ae0c0d4fd1475a828abaab0df21cc8a35b2d
SHA256

1094c1ad5f0ff0bfe72a6d343c7eb11a8cccf176e25f948db1ea0d97e5e9edaa
SHA512

c4956b949652e421a9f0fb54d9408ba31f4d118cb153f1874994a181db1d2091d55b226d102809b3b1e5cc06e5a719219d97552a8cfbfdf86d0dcf248f4232c1
SSDEEP

1536:eVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApEtR:OnxwgxgfR/DVG7wBpEtR

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
2528	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4932-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4932-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2528-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2528-21-0x0000000000400000-0x0000000000468000-memory.dmp	upx
behavioral2/memory/4932-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4932-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4932-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4932-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4932-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2528-34-0x0000000000400000-0x0000000000468000-memory.dmp	upx
behavioral2/memory/2528-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2528-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9A4C.tmp	JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1620	3008	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_a9cabbecd44d3fdef17107777d59974e.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4108592234"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156644"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443968457"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156644"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{204D4B0B-D598-11EF-B319-CAF61997B0B0} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4106560593"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe
2528	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4936	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4936	iexplore.exe
4936	iexplore.exe
3684	IEXPLORE.EXE
3684	IEXPLORE.EXE
3684	IEXPLORE.EXE
3684	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4932	JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe
2528	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 2528	4932	JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe	83
PID 4932 wrote to memory of 2528	4932	JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe	83
PID 4932 wrote to memory of 2528	4932	JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe	83
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 3008	2528	WaterMark.exe	84
PID 2528 wrote to memory of 4936	2528	WaterMark.exe	89
PID 2528 wrote to memory of 4936	2528	WaterMark.exe	89
PID 2528 wrote to memory of 2420	2528	WaterMark.exe	90
PID 2528 wrote to memory of 2420	2528	WaterMark.exe	90
PID 4936 wrote to memory of 3684	4936	iexplore.exe	92
PID 4936 wrote to memory of 3684	4936	iexplore.exe	92
PID 4936 wrote to memory of 3684	4936	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9cabbecd44d3fdef17107777d59974e.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4932
- 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:2528
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3008
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3008 -s 204
      4⤵
      Program crash
      PID:1620
- - 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:4936
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4936 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3684
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:2420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3008 -ip 3008
1⤵
PID:60

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

Loading Replay Monitor...

Downloads

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

Filesize
93KB

MD5
a9cabbecd44d3fdef17107777d59974e

SHA1
5435ae0c0d4fd1475a828abaab0df21cc8a35b2d

SHA256
1094c1ad5f0ff0bfe72a6d343c7eb11a8cccf176e25f948db1ea0d97e5e9edaa

SHA512
c4956b949652e421a9f0fb54d9408ba31f4d118cb153f1874994a181db1d2091d55b226d102809b3b1e5cc06e5a719219d97552a8cfbfdf86d0dcf248f4232c1

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

Filesize
471B

MD5
4363732b094e06ea613be8ca268f5460

SHA1
ad4d6ca8f2362a24800a1f752f99d7c55c0ce862

SHA256
0bc53d2e4ba5d43da581d2eda05c56f2c3a93407b3d35c8d630507c0fb81a21d

SHA512
b5c075fbcbead37980c28e3e8745339445d1e5bc4c873ca70995012c72f09dd1f4cd315faf02589be84fd6b7683673836df8d228cd94e6e6c3e3659081af4c99

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

Filesize
404B

MD5
6cd84f681dc4f6282685fd4fd9a1cf13

SHA1
12cfafe2c720b06507383a9cb36406a43cde7844

SHA256
3de9ad087c250897b9d5efade716e279f8da83b795910981223d2a45a144255b

SHA512
76e16059e28a0f9424a8c9275dcbc3416d6efe623dd465e37694ae89166206058a2c556a672cca40c7cd429b5c06cc22f7d58f6f7cc54238bba9ba1263452d4d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/2528-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2528-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2528-33-0x0000000077192000-0x0000000077193000-memory.dmp

Filesize
4KB

Download
memory/2528-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2528-34-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2528-24-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2528-21-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2528-28-0x0000000077192000-0x0000000077193000-memory.dmp

Filesize
4KB

Download
memory/2528-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/3008-30-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/3008-31-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/4932-7-0x00000000008F0000-0x00000000008F1000-memory.dmp

Filesize
4KB

Download
memory/4932-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4932-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4932-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4932-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4932-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4932-26-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/4932-0-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/4932-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4932-1-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/4932-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing