tofsee | 2e6e2a327ff7f6b0b53d80d8c0fe67cef3ea8513f955e536e0f4a7005b6e06f9

General

Target

fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe
Size

12.8MB
MD5

fa9d27cf93f96d92ff552b233428f4d9
SHA1

8bf2837a74597a168425ba48c4706756d2fb20c6
SHA256

2e6e2a327ff7f6b0b53d80d8c0fe67cef3ea8513f955e536e0f4a7005b6e06f9
SHA512

5c5fbc5534c4434fc8b81294e72fbefe257e4983fc7e7efcfdcdc61c249dbec25f53333921a1de3d98d6a23f0f8d0ee7783f5384ccbd87a02d3a0f2f43ae3f9d
SSDEEP

49152:xkVuhFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF:xk

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

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

4780 netsh.exe

pid	process
4780	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\rarltih\ImagePath = "C:\\Windows\\SysWOW64\\rarltih\\hebzlwlz.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:

fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2716 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

hebzlwlz.exe

pid process

4948 hebzlwlz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hebzlwlz.exe

description pid process target process

PID 4948 set thread context of 2716 4948 hebzlwlz.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

4620 sc.exe
2748 sc.exe
2636 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

5072 2424 WerFault.exe fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe
1668 4948 WerFault.exe hebzlwlz.exe

pid	process
2716	svchost.exe

pid	process
4948	hebzlwlz.exe

description	pid	process	target process
PID 4948 set thread context of 2716	4948	hebzlwlz.exe	svchost.exe

pid	process
4620	sc.exe
2748	sc.exe
2636	sc.exe

pid	pid_target	process	target process
5072	2424	WerFault.exe	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe
1668	4948	WerFault.exe	hebzlwlz.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exehebzlwlz.exe

description	pid	process	target process
PID 2424 wrote to memory of 3212	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2424 wrote to memory of 3212	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2424 wrote to memory of 3212	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2424 wrote to memory of 2924	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2424 wrote to memory of 2924	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2424 wrote to memory of 2924	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	cmd.exe
PID 2424 wrote to memory of 4620	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 4620	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 4620	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 2748	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 2748	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 2748	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 2636	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 2636	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 2636	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	sc.exe
PID 2424 wrote to memory of 4780	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	netsh.exe
PID 2424 wrote to memory of 4780	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	netsh.exe
PID 2424 wrote to memory of 4780	2424	fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe	netsh.exe
PID 4948 wrote to memory of 2716	4948	hebzlwlz.exe	svchost.exe
PID 4948 wrote to memory of 2716	4948	hebzlwlz.exe	svchost.exe
PID 4948 wrote to memory of 2716	4948	hebzlwlz.exe	svchost.exe
PID 4948 wrote to memory of 2716	4948	hebzlwlz.exe	svchost.exe
PID 4948 wrote to memory of 2716	4948	hebzlwlz.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2424

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rarltih\
2⤵
PID:3212

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hebzlwlz.exe" C:\Windows\SysWOW64\rarltih\
2⤵
PID:2924

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create rarltih binPath= "C:\Windows\SysWOW64\rarltih\hebzlwlz.exe /d\"C:\Users\Admin\AppData\Local\Temp\fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4620

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description rarltih "wifi internet conection"
2⤵
- Launches sc.exe
PID:2748

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start rarltih
2⤵
- Launches sc.exe
PID:2636

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:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2424 -s 1188
2⤵
- Program crash
PID:5072

C:\Windows\SysWOW64\rarltih\hebzlwlz.exe
C:\Windows\SysWOW64\rarltih\hebzlwlz.exe /d"C:\Users\Admin\AppData\Local\Temp\fa9d27cf93f96d92ff552b233428f4d9_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4948

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 556
2⤵
- Program crash
PID:1668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2424 -ip 2424
1⤵
PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4948 -ip 4948
1⤵
PID:3220

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\hebzlwlz.exe
Filesize
12.8MB

MD5
783349b7c285c1d86bf3a8467d00bfd0

SHA1
7188319df4e15cb47fdeff71ed04e4da62808695

SHA256
e3b2cb0fbda4ed342a3e11db48ef4c6fd4441eb15c729efbbe3a51d6f955cf09

SHA512
4774203a2e949a6b1bd8c932eb42deba9d65c691c8b39accfb4228dfad1535e704b3552aa5a56e463d2cd93a715f3625556e2b58cd90619df153398c8961fcb7

Download Submit
memory/2424-1-0x0000000000F10000-0x0000000001010000-memory.dmp

Filesize
1024KB

Download
memory/2424-2-0x0000000000E80000-0x0000000000E93000-memory.dmp

Filesize
76KB

Download
memory/2424-4-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2424-7-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2424-8-0x0000000000E80000-0x0000000000E93000-memory.dmp

Filesize
76KB

Download
memory/2716-16-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/2716-12-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/2716-17-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/2716-19-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/4948-11-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/4948-10-0x0000000000D10000-0x0000000000E10000-memory.dmp

Filesize
1024KB

Download
memory/4948-18-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads