ramnit | 38f07e29402514e7c715e4a480156999f453077162604df6385949d4ecc4d81d

General

Target

JaffaCakes118_1616d9b2757ddb96eeb79aac35f5dc04.dll
Size

92KB
MD5

1616d9b2757ddb96eeb79aac35f5dc04
SHA1

ed8ae46dd30c103b7cc4a54cc640887067964fa9
SHA256

38f07e29402514e7c715e4a480156999f453077162604df6385949d4ecc4d81d
SHA512

774cc7e6a6c2dce813714fffc0d4879b1b86291bc3c8e95c3939e19934e1abf17d8fac5f23b2b19f3b1ebed2cef362023d42f2cfd6eeb68287218f461f34af64
SSDEEP

1536:EibToqp78Ccj4wzj4NWuqmLAFZ5bMGeqJYFM/iDgEF:EibTTp78CcUwzjdFZ5bMjnFM/GgW

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 2 IoCs

pid	Process
1668	rundll32Srv.exe
3228	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1668-6-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/1668-8-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/3228-15-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/3228-17-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/3228-19-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px8666.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1940	1184	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157629"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2135970802"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2140501789"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444391314"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{AACC8BAE-D970-11EF-BDBF-CAFD856C81B1} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157629"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3228	DesktopLayer.exe
3228	DesktopLayer.exe
3228	DesktopLayer.exe
3228	DesktopLayer.exe
3228	DesktopLayer.exe
3228	DesktopLayer.exe
3228	DesktopLayer.exe
3228	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
116	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
116	iexplore.exe
116	iexplore.exe
2184	IEXPLORE.EXE
2184	IEXPLORE.EXE
2184	IEXPLORE.EXE
2184	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 1184	1120	rundll32.exe	83
PID 1120 wrote to memory of 1184	1120	rundll32.exe	83
PID 1120 wrote to memory of 1184	1120	rundll32.exe	83
PID 1184 wrote to memory of 1668	1184	rundll32.exe	84
PID 1184 wrote to memory of 1668	1184	rundll32.exe	84
PID 1184 wrote to memory of 1668	1184	rundll32.exe	84
PID 1668 wrote to memory of 3228	1668	rundll32Srv.exe	86
PID 1668 wrote to memory of 3228	1668	rundll32Srv.exe	86
PID 1668 wrote to memory of 3228	1668	rundll32Srv.exe	86
PID 3228 wrote to memory of 116	3228	DesktopLayer.exe	88
PID 3228 wrote to memory of 116	3228	DesktopLayer.exe	88
PID 116 wrote to memory of 2184	116	iexplore.exe	90
PID 116 wrote to memory of 2184	116	iexplore.exe	90
PID 116 wrote to memory of 2184	116	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1616d9b2757ddb96eeb79aac35f5dc04.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1616d9b2757ddb96eeb79aac35f5dc04.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1184
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1668
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:3228
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:116
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:116 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2184
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 608
    3⤵
    - Program crash
    PID:1940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1184 -ip 1184
1⤵
PID:4408

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:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
dc142ff8759ecb81417ba231bbcf25d0

SHA1
201681d524cde8af5c11b5111f5fa697521c5739

SHA256
d6e2a573b1e137d8b823b82cfeaadeb30df36a0fa7a268a1278465b28fdc7bb6

SHA512
b36456cf3ef37e4bbe0e4acf8b25cc85a39f8517d1b80b3191b1be7ddc6d58c74247b2d9dedb0b67ac4f8a2f3d92773e90aee326cfe612f8573ba6ad6b73e833

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

Filesize
404B

MD5
5891f53deba66472e8aa8d60a86367e3

SHA1
df9c2e533387b0f490f0f3cda2ec565694521a27

SHA256
86ff33e8589699494bff94425a7fd79d0e66dd5c7bb7b99a80efde4e2cc326d6

SHA512
591bff8a313cfccc753f5d734e474a1468dd8de8b1c0ddea9f5ab0a81b5feef7bb96ce8a0c6ee47de2f145ba71b6886062e7721bd7b7a74237d0c41eecca704d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
52KB

MD5
17efb7e40d4cadaf3a4369435a8772ec

SHA1
eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

SHA256
f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

SHA512
522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

Download Submit
memory/1184-22-0x000000006D080000-0x000000006D097000-memory.dmp

Filesize
92KB

Download
memory/1184-0-0x000000006D080000-0x000000006D097000-memory.dmp

Filesize
92KB

Download
memory/1668-4-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1668-6-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1668-8-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1668-7-0x0000000000470000-0x0000000000472000-memory.dmp

Filesize
8KB

Download
memory/3228-15-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3228-19-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3228-17-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3228-18-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download

Analysis

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