tofsee | d4ca44f11b84cb185a779b6beb43f3317ffe91cf08d67a8da639764151a79d1e

General

Target

f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe
Size

10.1MB
MD5

f8d62bc2e174e624fd63ded004a3ca94
SHA1

2b3e1baa0a7407f1627e6349d044eada991b5452
SHA256

d4ca44f11b84cb185a779b6beb43f3317ffe91cf08d67a8da639764151a79d1e
SHA512

7b67a2403813a48103fdda53dd665b3e96d9b859dfdfbd044e85f52bdd3e17953f044e78c22e2935e17724df8b10491f9727dbce5d88c8e37ca35f17bef565f6
SSDEEP

24576:6URprj37+W55555555555555555555555555555555555555555555555555555n:1TP

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\zrjlgpjy = "0"	svchost.exe

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

2588 netsh.exe

pid	process
2588	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\zrjlgpjy\ImagePath = "C:\\Windows\\SysWOW64\\zrjlgpjy\\udtnmluk.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1960 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

udtnmluk.exe

pid process

2716 udtnmluk.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

udtnmluk.exe

description pid process target process

PID 2716 set thread context of 1960 2716 udtnmluk.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

2636 sc.exe
2612 sc.exe
3060 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1960	svchost.exe

pid	process
2716	udtnmluk.exe

description	pid	process	target process
PID 2716 set thread context of 1960	2716	udtnmluk.exe	svchost.exe

pid	process
2636	sc.exe
2612	sc.exe
3060	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exeudtnmluk.exe

description	pid	process	target process
PID 2300 wrote to memory of 2356	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	cmd.exe
PID 2300 wrote to memory of 2356	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	cmd.exe
PID 2300 wrote to memory of 2356	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	cmd.exe
PID 2300 wrote to memory of 2356	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	cmd.exe
PID 2300 wrote to memory of 1028	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	cmd.exe
PID 2300 wrote to memory of 1028	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	cmd.exe
PID 2300 wrote to memory of 1028	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	cmd.exe
PID 2300 wrote to memory of 1028	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	cmd.exe
PID 2300 wrote to memory of 2612	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 2612	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 2612	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 2612	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 3060	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 3060	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 3060	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 3060	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 2636	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 2636	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 2636	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 2636	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	sc.exe
PID 2300 wrote to memory of 2588	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	netsh.exe
PID 2300 wrote to memory of 2588	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	netsh.exe
PID 2300 wrote to memory of 2588	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	netsh.exe
PID 2300 wrote to memory of 2588	2300	f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe	netsh.exe
PID 2716 wrote to memory of 1960	2716	udtnmluk.exe	svchost.exe
PID 2716 wrote to memory of 1960	2716	udtnmluk.exe	svchost.exe
PID 2716 wrote to memory of 1960	2716	udtnmluk.exe	svchost.exe
PID 2716 wrote to memory of 1960	2716	udtnmluk.exe	svchost.exe
PID 2716 wrote to memory of 1960	2716	udtnmluk.exe	svchost.exe
PID 2716 wrote to memory of 1960	2716	udtnmluk.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2300

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zrjlgpjy\
2⤵
PID:2356

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\udtnmluk.exe" C:\Windows\SysWOW64\zrjlgpjy\
2⤵
PID:1028

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zrjlgpjy binPath= "C:\Windows\SysWOW64\zrjlgpjy\udtnmluk.exe /d\"C:\Users\Admin\AppData\Local\Temp\f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2612

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zrjlgpjy "wifi internet conection"
2⤵
- Launches sc.exe
PID:3060

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zrjlgpjy
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:2588

C:\Windows\SysWOW64\zrjlgpjy\udtnmluk.exe
C:\Windows\SysWOW64\zrjlgpjy\udtnmluk.exe /d"C:\Users\Admin\AppData\Local\Temp\f8d62bc2e174e624fd63ded004a3ca94_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2716

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1960

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\udtnmluk.exe

Filesize
14.5MB

MD5
bcb546c460ce1a4d8b463ad24469b1a4

SHA1
cc036d1259ece03f1d812118f4bfd963257ba5d9

SHA256
edcd6a886fa213f2ae06a064be4ec69b3fd26252badcdaf0805568e474fb99e8

SHA512
0df846c0d581570f1bdf744c6204d3af58389e0eea516215def6fe93ad701c7e42085d360a8322f092c6d14f46ad5bd8fe79d4f5a93d7364b1d027c299f2722c

Download Submit
memory/1960-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1960-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1960-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1960-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1960-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1960-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1960-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2300-2-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2300-1-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2300-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2300-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2716-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2716-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads