tofsee | 270e15b50f3eb2895ff790fba1b9137672639bbb75d08520c26933364ab010cb

General

Target

JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe
Size

94KB
MD5

78ecd98f4df225f36ad1bf18814c8360
SHA1

30e99fdb525eb0163e76c943e6db50b16dce38f7
SHA256

270e15b50f3eb2895ff790fba1b9137672639bbb75d08520c26933364ab010cb
SHA512

b3f3a9be6d66f697f262383553015be43bb427853399a1f774d4418d202898dd2bbdc1ef7edd899c576020746d6f2b6cd0c78d6318eb03f74a525cf8e6816aa6
SSDEEP

1536:HaT5HC7L9vnEexvevA17dfTWmU6WmQt8upcr/d:HaT5aLaexbditRtsrF

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

C2

91.218.38.211

188.130.237.71

185.25.48.10

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe

Executes dropped EXE 1 IoCs

pid	Process
640	tglydqjr.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\tglydqjr.exe\""	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 640 set thread context of 1996	640	tglydqjr.exe	83

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4760	1996	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	tglydqjr.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	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 640	3996	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe	82
PID 3996 wrote to memory of 640	3996	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe	82
PID 3996 wrote to memory of 640	3996	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe	82
PID 640 wrote to memory of 1996	640	tglydqjr.exe	83
PID 640 wrote to memory of 1996	640	tglydqjr.exe	83
PID 640 wrote to memory of 1996	640	tglydqjr.exe	83
PID 640 wrote to memory of 1996	640	tglydqjr.exe	83
PID 640 wrote to memory of 1996	640	tglydqjr.exe	83
PID 3996 wrote to memory of 4408	3996	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe	87
PID 3996 wrote to memory of 4408	3996	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe	87
PID 3996 wrote to memory of 4408	3996	JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ecd98f4df225f36ad1bf18814c8360.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Users\Admin\tglydqjr.exe
  "C:\Users\Admin\tglydqjr.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1996
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 356
      4⤵
      Program crash
      PID:4760
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1138.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1996 -ip 1996
1⤵
PID:2636

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\1138.bat

Filesize
266B

MD5
dc60bce479e37f866293544c30be89ab

SHA1
456871ca6ce48d6ee623af0bc5bfed95fd49fb2d

SHA256
8f76a747bcf1c273091148c2609a90adb0228b0c25c3943088eb92e1b635ac83

SHA512
59cb99cf342c09df0a76362b50fb998e9fe4d35ee8e53e56e1bfdf27b983910c2348b3fdecb59fc957fbea25f19620b45b02c64ad92853dec172137029722aee

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

Filesize
49.6MB

MD5
903143f27689c031532c9df7c9024aab

SHA1
36c3c7f5aebb927d5eb928c3e485765d65884d3d

SHA256
053b0dcf340ea0379026879e8bb1f88a8ee969c4f3aacdd46f42bf1c37cd90b8

SHA512
35953ac15cde6cb825763cfce636679ff0b81b507b5a668a12e3156ec1f13ef5ff75230806e9764a31b7f927042b7999791aa419b9652fb862b7a1f9cfccc174

Download Submit
memory/640-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/640-8-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/640-7-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1996-9-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download
memory/1996-12-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download
memory/1996-15-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download
memory/1996-26-0x0000000000B00000-0x0000000000B01000-memory.dmp

Filesize
4KB

Download
memory/1996-27-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download
memory/1996-28-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download
memory/3996-0-0x0000000002180000-0x0000000002192000-memory.dmp

Filesize
72KB

Download
memory/3996-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3996-23-0x0000000002180000-0x0000000002192000-memory.dmp

Filesize
72KB

Download
memory/3996-1-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads