tofsee | a26ca3465b8713a3686b8c4bb347232255e9ea0e35daed51c8ce1e02fd808e35

General

Target

fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe
Size

13.7MB
MD5

fc1d66c4d7ae9e6666b1ada915b7ef47
SHA1

5cb80106721e4d8a0b87eee4a747ec12ca277c90
SHA256

a26ca3465b8713a3686b8c4bb347232255e9ea0e35daed51c8ce1e02fd808e35
SHA512

e34dd1acd21e345d7e8f767971fa4044bef67e7752dfbea952204b4878ae9451c22a8274a10b2b6b085ce781f824b26bc1365429ccb0f45921238498dd57cbd7
SSDEEP

49152:ajrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrP:M

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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

5080 netsh.exe

pid	process
5080	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\wfgjswmo\ImagePath = "C:\\Windows\\SysWOW64\\wfgjswmo\\tseafpzm.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:

fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3232 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tseafpzm.exe

pid process

4884 tseafpzm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tseafpzm.exe

description pid process target process

PID 4884 set thread context of 3232 4884 tseafpzm.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

4556 sc.exe
4864 sc.exe
4104 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3232	svchost.exe

pid	process
4884	tseafpzm.exe

description	pid	process	target process
PID 4884 set thread context of 3232	4884	tseafpzm.exe	svchost.exe

pid	process
4556	sc.exe
4864	sc.exe
4104	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exetseafpzm.exe

description	pid	process	target process
PID 3596 wrote to memory of 3220	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	cmd.exe
PID 3596 wrote to memory of 3220	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	cmd.exe
PID 3596 wrote to memory of 3220	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	cmd.exe
PID 3596 wrote to memory of 3108	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	cmd.exe
PID 3596 wrote to memory of 3108	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	cmd.exe
PID 3596 wrote to memory of 3108	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	cmd.exe
PID 3596 wrote to memory of 4556	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 3596 wrote to memory of 4556	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 3596 wrote to memory of 4556	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 3596 wrote to memory of 4864	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 3596 wrote to memory of 4864	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 3596 wrote to memory of 4864	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 3596 wrote to memory of 4104	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 3596 wrote to memory of 4104	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 3596 wrote to memory of 4104	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	sc.exe
PID 4884 wrote to memory of 3232	4884	tseafpzm.exe	svchost.exe
PID 4884 wrote to memory of 3232	4884	tseafpzm.exe	svchost.exe
PID 4884 wrote to memory of 3232	4884	tseafpzm.exe	svchost.exe
PID 4884 wrote to memory of 3232	4884	tseafpzm.exe	svchost.exe
PID 4884 wrote to memory of 3232	4884	tseafpzm.exe	svchost.exe
PID 3596 wrote to memory of 5080	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	netsh.exe
PID 3596 wrote to memory of 5080	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	netsh.exe
PID 3596 wrote to memory of 5080	3596	fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3596

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wfgjswmo\
2⤵
PID:3220

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tseafpzm.exe" C:\Windows\SysWOW64\wfgjswmo\
2⤵
PID:3108

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wfgjswmo binPath= "C:\Windows\SysWOW64\wfgjswmo\tseafpzm.exe /d\"C:\Users\Admin\AppData\Local\Temp\fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4556

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description wfgjswmo "wifi internet conection"
2⤵
- Launches sc.exe
PID:4864

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wfgjswmo
2⤵
- Launches sc.exe
PID:4104

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:5080

C:\Windows\SysWOW64\wfgjswmo\tseafpzm.exe
C:\Windows\SysWOW64\wfgjswmo\tseafpzm.exe /d"C:\Users\Admin\AppData\Local\Temp\fc1d66c4d7ae9e6666b1ada915b7ef47_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4884

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:3232

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\tseafpzm.exe

Filesize
14.8MB

MD5
bd79bb2befae8b539d6075bf9d421286

SHA1
697efc7667434fad4da0033d12f122f7b496eaed

SHA256
f5b115dbfcc72f1ad67dc81e951ef279e1558acddc8af8fc91de0b07b83cba6c

SHA512
18f2d8478d243a1d72ca165e1773be7b04cfdc82d0266b913d3185561e0101f68232a0125963f9ae0d55b447473db80c7ba023e852939808a99ae19a15f9f9d3

Download Submit
memory/3232-10-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/3232-18-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/3232-17-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/3232-16-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/3232-14-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/3596-1-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3596-15-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3596-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3596-3-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/3596-2-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/4884-8-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/4884-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4884-7-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads