tofsee | 54468fb6e2a419631ee588c009aa81d6834c629fb07806f5efa1bede586f6805

General

Target

f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe
Size

81KB
MD5

f3f46b1f53a62b77236950cbdad3f3a0
SHA1

682e571e3956da0885457d99119a1fb77917cf6c
SHA256

54468fb6e2a419631ee588c009aa81d6834c629fb07806f5efa1bede586f6805
SHA512

4c3c82afd367e5bbc104e1170ce5fd9cc496c2497e91a7fa7253bfbcb70a436d64d5c70c12f884663e9c77aa9ee1f96b7284f36b9a0c1ba7f69a93dc0e49df68
SSDEEP

1536:UiKNdEAhWWVykEMmZH3SRA3fDhYWYSLt+N+OJ:BKbhNkrYRA32bCt+NX

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

C2

208.131.138.216

188.165.132.183

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4140	goqi.exe
3116	goqi.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\goqi.exe\""	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4468 set thread context of 988	4468	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	82
PID 4140 set thread context of 3116	4140	goqi.exe	86
PID 3116 set thread context of 1708	3116	goqi.exe	88

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 3 IoCs

pid	pid_target	Process	procid_target
4924	1708	WerFault.exe	88
4964	4468	WerFault.exe	81
3404	4140	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 6 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	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	goqi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	goqi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 988	4468	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	82
PID 4468 wrote to memory of 988	4468	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	82
PID 4468 wrote to memory of 988	4468	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	82
PID 4468 wrote to memory of 988	4468	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	82
PID 4468 wrote to memory of 988	4468	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	82
PID 988 wrote to memory of 4140	988	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	84
PID 988 wrote to memory of 4140	988	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	84
PID 988 wrote to memory of 4140	988	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	84
PID 4140 wrote to memory of 3116	4140	goqi.exe	86
PID 4140 wrote to memory of 3116	4140	goqi.exe	86
PID 4140 wrote to memory of 3116	4140	goqi.exe	86
PID 4140 wrote to memory of 3116	4140	goqi.exe	86
PID 4140 wrote to memory of 3116	4140	goqi.exe	86
PID 3116 wrote to memory of 1708	3116	goqi.exe	88
PID 3116 wrote to memory of 1708	3116	goqi.exe	88
PID 3116 wrote to memory of 1708	3116	goqi.exe	88
PID 3116 wrote to memory of 1708	3116	goqi.exe	88
PID 3116 wrote to memory of 1708	3116	goqi.exe	88
PID 988 wrote to memory of 1624	988	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	93
PID 988 wrote to memory of 1624	988	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	93
PID 988 wrote to memory of 1624	988	f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Users\Admin\AppData\Local\Temp\f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f3f46b1f53a62b77236950cbdad3f3a0_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:988
- - C:\Users\Admin\goqi.exe
    "C:\Users\Admin\goqi.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4140
  - - C:\Users\Admin\goqi.exe
      "C:\Users\Admin\goqi.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3116
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1708
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 320
        6⤵
        Program crash
        
        PID:4924
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 296
      4⤵
      Program crash
      PID:3404
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5156.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 308
  2⤵
  - Program crash
  PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4468 -ip 4468
1⤵
PID:2628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4140 -ip 4140
1⤵
PID:5048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1708 -ip 1708
1⤵
PID:4200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\5156.bat

Filesize
266B

MD5
c6b216f59c9bc69f509273934035ceca

SHA1
3ef7dcc18fdf22e18ac3192d41ae577ff44bd30a

SHA256
7bb1739e61245dea9f605a6680685c9a79222b92dbd17e1d495e31b9682409e8

SHA512
ed0c2941d398bbf52108829412c8127944dae725628cc2816e8770ce107ee6475a8b7182c61ae46a91da9736fe63c083dadecf6bfbbe985768f755e20164c858

Download Submit
C:\Users\Admin\goqi.exe

Filesize
81KB

MD5
f3f46b1f53a62b77236950cbdad3f3a0

SHA1
682e571e3956da0885457d99119a1fb77917cf6c

SHA256
54468fb6e2a419631ee588c009aa81d6834c629fb07806f5efa1bede586f6805

SHA512
4c3c82afd367e5bbc104e1170ce5fd9cc496c2497e91a7fa7253bfbcb70a436d64d5c70c12f884663e9c77aa9ee1f96b7284f36b9a0c1ba7f69a93dc0e49df68

Download Submit
memory/988-26-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/988-1-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/988-3-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/988-5-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1708-29-0x0000000000DA0000-0x0000000000DB1000-memory.dmp

Filesize
68KB

Download
memory/1708-16-0x0000000000DA0000-0x0000000000DB1000-memory.dmp

Filesize
68KB

Download
memory/1708-30-0x0000000002DE0000-0x0000000002DE1000-memory.dmp

Filesize
4KB

Download
memory/1708-31-0x0000000000DA0000-0x0000000000DB1000-memory.dmp

Filesize
68KB

Download
memory/1708-33-0x0000000000DA0000-0x0000000000DB1000-memory.dmp

Filesize
68KB

Download
memory/3116-15-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4140-10-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4468-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads