tofsee | 231eebbfeac8480860af0aa2e57c275bf2c1e7fa26288fb1424cbbc9e261e69f

General

Target

5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
Size

255KB
MD5

5a6f1e62b8443543418fe946cc21951c
SHA1

4bb3dc57fd0dda3e85c3f156142d8670777336c5
SHA256

231eebbfeac8480860af0aa2e57c275bf2c1e7fa26288fb1424cbbc9e261e69f
SHA512

e11fe0aa39137381a877c908b27b5bab0a0421109526462dffbd84b81c9ba47a756677e77d1e0ebf1555e407598d1205a006080174efb783606e5977fe8a92d8
SSDEEP

6144:csGUGKYxh+tcgagqz1YXoZcNYXoZcNYXoZcNYX:LGUGdh+tcgbqz1YXoZcNYXoZcNYXoZca

Score

10^/10

tofsee persistence trojan

Malware Config

Extracted

Family

tofsee

C2

31.210.119.2

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

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

Processes:

5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

jjxgypg.exejjxgypg.exe

pid process

1028 jjxgypg.exe
1352 jjxgypg.exe

pid	process
1028	jjxgypg.exe
1352	jjxgypg.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\jjxgypg.exe\" /r"	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exejjxgypg.exejjxgypg.exe

description	pid	process	target process
PID 5064 set thread context of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 1028 set thread context of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1352 set thread context of 1380	1352	jjxgypg.exe	svchost.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4656 1380 WerFault.exe svchost.exe

pid	pid_target	process	target process
4656	1380	WerFault.exe	svchost.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exejjxgypg.exejjxgypg.exe

description	pid	process	target process
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
PID 3696 wrote to memory of 1028	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	jjxgypg.exe
PID 3696 wrote to memory of 1028	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	jjxgypg.exe
PID 3696 wrote to memory of 1028	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	jjxgypg.exe
PID 3696 wrote to memory of 4312	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	cmd.exe
PID 3696 wrote to memory of 4312	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	cmd.exe
PID 3696 wrote to memory of 4312	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	cmd.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	jjxgypg.exe
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	svchost.exe
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	svchost.exe
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	svchost.exe
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	svchost.exe
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5064

C:\Users\Admin\AppData\Local\Temp\5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3696

C:\Users\Admin\jjxgypg.exe
"C:\Users\Admin\jjxgypg.exe" /r
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1028

C:\Users\Admin\jjxgypg.exe
"C:\Users\Admin\jjxgypg.exe" /r
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1352

C:\Windows\SysWOW64\svchost.exe
svchost.exe
5⤵
PID:1380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1380 -s 324
6⤵
- Program crash
PID:4656

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7471.bat" "
3⤵
PID:4312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1380 -ip 1380
1⤵
PID:896

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\7471.bat
Filesize
117B

MD5
900e98af12c059c9874f589baacd5ead

SHA1
9ca5db7f48bf3c94cfeb46afa65d6bc307fdb762

SHA256
31fb27714f89685e0c73fc168c36132175e7ef372e2e5cd259474ca1d63d615d

SHA512
d13be4df50ef1c4f6a3b40409342e232d7965ac9328cdf305909959cf9687bbadb63903048f47f17735fc37d221b432fbe90aa6da6b442ccbf37850c185d4cd9

Download Submit
C:\Users\Admin\jjxgypg.exe
Filesize
255KB

MD5
5a6f1e62b8443543418fe946cc21951c

SHA1
4bb3dc57fd0dda3e85c3f156142d8670777336c5

SHA256
231eebbfeac8480860af0aa2e57c275bf2c1e7fa26288fb1424cbbc9e261e69f

SHA512
e11fe0aa39137381a877c908b27b5bab0a0421109526462dffbd84b81c9ba47a756677e77d1e0ebf1555e407598d1205a006080174efb783606e5977fe8a92d8

Download Submit
memory/1352-19-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1380-29-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1380-30-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/1380-31-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1380-32-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3696-0-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3696-2-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3696-4-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3696-13-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads