tofsee | 01d1d4a4fd0228bd3ba6f7b6fc9c573bb38800713144ee112500f9efe2249e23

General

Target

f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe
Size

10.1MB
MD5

f9b27329a6626a54bb3c1758a117587d
SHA1

edbf73d0859efccdb4fd37fdd75ed677d69469be
SHA256

01d1d4a4fd0228bd3ba6f7b6fc9c573bb38800713144ee112500f9efe2249e23
SHA512

2c49782962efa7f29a4b6b466defa63ed838057e168fb874b28f67aebd68607131398403fa7ee1309c078acce0f3c087e56744b51351c6bb40100154e30184a3
SSDEEP

12288:OIIW7A7qL8SHSIiwN/iZBqAsArTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTX:DA7qLNNf

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

1180 netsh.exe

pid	process
1180	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\tjcarawq\ImagePath = "C:\\Windows\\SysWOW64\\tjcarawq\\mvdbuwzz.exe"	svchost.exe

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:

f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4168 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

mvdbuwzz.exe

pid process

5012 mvdbuwzz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

mvdbuwzz.exe

description pid process target process

PID 5012 set thread context of 4168 5012 mvdbuwzz.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

1392 sc.exe
1492 sc.exe
3812 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1616 1944 WerFault.exe f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe
2092 5012 WerFault.exe mvdbuwzz.exe

pid	process
4168	svchost.exe

pid	process
5012	mvdbuwzz.exe

description	pid	process	target process
PID 5012 set thread context of 4168	5012	mvdbuwzz.exe	svchost.exe

pid	process
1392	sc.exe
1492	sc.exe
3812	sc.exe

pid	pid_target	process	target process
1616	1944	WerFault.exe	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe
2092	5012	WerFault.exe	mvdbuwzz.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exemvdbuwzz.exe

description	pid	process	target process
PID 1944 wrote to memory of 4716	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	cmd.exe
PID 1944 wrote to memory of 4716	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	cmd.exe
PID 1944 wrote to memory of 4716	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	cmd.exe
PID 1944 wrote to memory of 4108	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	cmd.exe
PID 1944 wrote to memory of 4108	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	cmd.exe
PID 1944 wrote to memory of 4108	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	cmd.exe
PID 1944 wrote to memory of 1392	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 1392	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 1392	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 1492	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 1492	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 1492	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 3812	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 3812	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 3812	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	sc.exe
PID 1944 wrote to memory of 1180	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	netsh.exe
PID 1944 wrote to memory of 1180	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	netsh.exe
PID 1944 wrote to memory of 1180	1944	f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe	netsh.exe
PID 5012 wrote to memory of 4168	5012	mvdbuwzz.exe	svchost.exe
PID 5012 wrote to memory of 4168	5012	mvdbuwzz.exe	svchost.exe
PID 5012 wrote to memory of 4168	5012	mvdbuwzz.exe	svchost.exe
PID 5012 wrote to memory of 4168	5012	mvdbuwzz.exe	svchost.exe
PID 5012 wrote to memory of 4168	5012	mvdbuwzz.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tjcarawq\
2⤵
PID:4716

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mvdbuwzz.exe" C:\Windows\SysWOW64\tjcarawq\
2⤵
PID:4108

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create tjcarawq binPath= "C:\Windows\SysWOW64\tjcarawq\mvdbuwzz.exe /d\"C:\Users\Admin\AppData\Local\Temp\f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1392

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description tjcarawq "wifi internet conection"
2⤵
- Launches sc.exe
PID:1492

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start tjcarawq
2⤵
- Launches sc.exe
PID:3812

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
2⤵
- Modifies Windows Firewall
PID:1180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 668
2⤵
- Program crash
PID:1616

C:\Windows\SysWOW64\tjcarawq\mvdbuwzz.exe
C:\Windows\SysWOW64\tjcarawq\mvdbuwzz.exe /d"C:\Users\Admin\AppData\Local\Temp\f9b27329a6626a54bb3c1758a117587d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5012

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 516
2⤵
- Program crash
PID:2092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1944 -ip 1944
1⤵
PID:3836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5012 -ip 5012
1⤵
PID:3772

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5248 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
1⤵
PID:212

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

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

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\mvdbuwzz.exe

Filesize
12.2MB

MD5
8717e67b42d24e452545e2f00ad57a33

SHA1
5b7f7fea04ab1717bce314fed23cee9dcb9fafc6

SHA256
0c4857df996f56844faee457ac5fcb7490a2e8ff53dba8942c5068801940ea61

SHA512
32467b9875748f26cc2784789b59df7adc11db86e61ebc848d3007a1f078832de783dc3eab1ac8234500aedee435f33a9d87d319523729ce3aa50b5b5dc4078c

Download Submit
memory/1944-1-0x0000000000750000-0x0000000000850000-memory.dmp

Filesize
1024KB

Download
memory/1944-2-0x0000000000710000-0x0000000000723000-memory.dmp

Filesize
76KB

Download
memory/1944-3-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1944-8-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1944-9-0x0000000000710000-0x0000000000723000-memory.dmp

Filesize
76KB

Download
memory/4168-15-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/4168-12-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/4168-17-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/4168-18-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/5012-11-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/5012-10-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/5012-16-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads