tofsee | cd1884569279f983b5b2be0ed933b1350cd7380ae47c2f57a6e25783cf6bd779

General

Target

d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe
Size

82KB
MD5

d94ee1c68667971dbc94fa29a51425bd
SHA1

8fa0e5886c13ea08ce3985ce86b12cdf45967440
SHA256

cd1884569279f983b5b2be0ed933b1350cd7380ae47c2f57a6e25783cf6bd779
SHA512

da8a4d6f44b470d8255cb723c6eb49cac95b10db4779eb24c6874f6f7f0b72c3822d36c2512e6da56af790b400f16928d5761253e73e319bf90b9fe9046addd2
SSDEEP

1536:IFEwgqPyIqNt6+4auQg3dTXVyaH8g6CAzzl:Pw6lLuLGahlw

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3428	hprj.exe
2872	hprj.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\hprj.exe\""	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4832 set thread context of 4044	4832	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	85
PID 3428 set thread context of 2872	3428	hprj.exe	89
PID 2872 set thread context of 5044	2872	hprj.exe	91

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
1624	5044	WerFault.exe	91
4688	4832	WerFault.exe	84
2640	3428	WerFault.exe	87

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	hprj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hprj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 4044	4832	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	85
PID 4832 wrote to memory of 4044	4832	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	85
PID 4832 wrote to memory of 4044	4832	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	85
PID 4832 wrote to memory of 4044	4832	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	85
PID 4832 wrote to memory of 4044	4832	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	85
PID 4044 wrote to memory of 3428	4044	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	87
PID 4044 wrote to memory of 3428	4044	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	87
PID 4044 wrote to memory of 3428	4044	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	87
PID 3428 wrote to memory of 2872	3428	hprj.exe	89
PID 3428 wrote to memory of 2872	3428	hprj.exe	89
PID 3428 wrote to memory of 2872	3428	hprj.exe	89
PID 3428 wrote to memory of 2872	3428	hprj.exe	89
PID 3428 wrote to memory of 2872	3428	hprj.exe	89
PID 2872 wrote to memory of 5044	2872	hprj.exe	91
PID 2872 wrote to memory of 5044	2872	hprj.exe	91
PID 2872 wrote to memory of 5044	2872	hprj.exe	91
PID 2872 wrote to memory of 5044	2872	hprj.exe	91
PID 2872 wrote to memory of 5044	2872	hprj.exe	91
PID 4044 wrote to memory of 3948	4044	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	96
PID 4044 wrote to memory of 3948	4044	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	96
PID 4044 wrote to memory of 3948	4044	d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Temp\d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d94ee1c68667971dbc94fa29a51425bd_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4044
- - C:\Users\Admin\hprj.exe
    "C:\Users\Admin\hprj.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3428
  - - C:\Users\Admin\hprj.exe
      "C:\Users\Admin\hprj.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2872
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:5044
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 320
        6⤵
        Program crash
        
        PID:1624
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3428 -s 300
      4⤵
      Program crash
      PID:2640
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6211.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4832 -s 296
  2⤵
  - Program crash
  PID:4688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4832 -ip 4832
1⤵
PID:1612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3428 -ip 3428
1⤵
PID:2280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 5044 -ip 5044
1⤵
PID:436

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\6211.bat

Filesize
266B

MD5
84f736ef4fc62380ba9346bafcc0811d

SHA1
bb0bbf86f716422e6abd3083c58d4501dcf511bd

SHA256
74a7bbd83f436f767fe224b1d2ddba9a2ebce46a511f3fc97c5b8084f94efbd8

SHA512
2ba0fddc94fb312723e9186ee3604b09ef17dd58e09f05a5c88838b037ef6fe4bbeb8bc9ca496a00d915150fc50b05e43a1e81d35219f7f51f7d2a2258f66ab6

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

Filesize
82KB

MD5
d94ee1c68667971dbc94fa29a51425bd

SHA1
8fa0e5886c13ea08ce3985ce86b12cdf45967440

SHA256
cd1884569279f983b5b2be0ed933b1350cd7380ae47c2f57a6e25783cf6bd779

SHA512
da8a4d6f44b470d8255cb723c6eb49cac95b10db4779eb24c6874f6f7f0b72c3822d36c2512e6da56af790b400f16928d5761253e73e319bf90b9fe9046addd2

Download Submit
memory/2872-14-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4044-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4044-2-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4044-4-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4044-24-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/5044-13-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/5044-29-0x0000000000B10000-0x0000000000B11000-memory.dmp

Filesize
4KB

Download
memory/5044-28-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/5044-30-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/5044-31-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads