tofsee | 4a65362140edf6266596e78a1b3617381d9e6654310eee10aa5206e364b73bc7

General

Target

9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe
Size

142KB
MD5

9484d5c263bbb436280dc8c8c1872e44
SHA1

a7e0a7a440f7fdb7f59bfc02a3fd5a01391e9786
SHA256

4a65362140edf6266596e78a1b3617381d9e6654310eee10aa5206e364b73bc7
SHA512

230774d0112ea62d6821d9672a8906be05251018e9ef193c5695c72afd409e8b718e95c7d4645b2317346d2484852ab47157a4b046ba10aa2114af8ff816c99a
SSDEEP

3072:NO8/FLfg16rzTkYfiL2+jKfgi4m5nuGFU6W6WNE6b3A:X9rzwFLnKP46uC

Score

10^/10

tofsee evasion execution 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\jbedkxnf = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2772 netsh.exe

pid	process
2772	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\jbedkxnf\ImagePath = "C:\\Windows\\SysWOW64\\jbedkxnf\\iuoskuqe.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2500 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

iuoskuqe.exe

pid process

2620 iuoskuqe.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

iuoskuqe.exe

description pid process target process

PID 2620 set thread context of 2500 2620 iuoskuqe.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

2652 sc.exe
2828 sc.exe
2256 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2500	svchost.exe

pid	process
2620	iuoskuqe.exe

description	pid	process	target process
PID 2620 set thread context of 2500	2620	iuoskuqe.exe	svchost.exe

pid	process
2652	sc.exe
2828	sc.exe
2256	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exeiuoskuqe.exe

description	pid	process	target process
PID 1700 wrote to memory of 848	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 848	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 848	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 848	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2192	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2192	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2192	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2192	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2652	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2652	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2652	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2652	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2828	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2828	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2828	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2828	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2256	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2256	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2256	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2256	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2772	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	netsh.exe
PID 1700 wrote to memory of 2772	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	netsh.exe
PID 1700 wrote to memory of 2772	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	netsh.exe
PID 1700 wrote to memory of 2772	1700	9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe	netsh.exe
PID 2620 wrote to memory of 2500	2620	iuoskuqe.exe	svchost.exe
PID 2620 wrote to memory of 2500	2620	iuoskuqe.exe	svchost.exe
PID 2620 wrote to memory of 2500	2620	iuoskuqe.exe	svchost.exe
PID 2620 wrote to memory of 2500	2620	iuoskuqe.exe	svchost.exe
PID 2620 wrote to memory of 2500	2620	iuoskuqe.exe	svchost.exe
PID 2620 wrote to memory of 2500	2620	iuoskuqe.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jbedkxnf\
  2⤵
  PID:848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iuoskuqe.exe" C:\Windows\SysWOW64\jbedkxnf\
  2⤵
  PID:2192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jbedkxnf binPath= "C:\Windows\SysWOW64\jbedkxnf\iuoskuqe.exe /d\"C:\Users\Admin\AppData\Local\Temp\9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jbedkxnf "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jbedkxnf
  2⤵
  - Launches sc.exe
  PID:2256
- 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:2772

C:\Windows\SysWOW64\jbedkxnf\iuoskuqe.exe
C:\Windows\SysWOW64\jbedkxnf\iuoskuqe.exe /d"C:\Users\Admin\AppData\Local\Temp\9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

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\iuoskuqe.exe

Filesize
11.7MB

MD5
fbc84ee266e597bb05e271cbfdd8d3ad

SHA1
6be0f398c357c00decdd7f2092861df8a3f56d73

SHA256
f5ebbc53e0a3534c8ef0e74b4e7822bbafe71a585b34600a0ae16d08c3d97792

SHA512
93d12b2d12c82cf1419af3a288f85132b8658bbfa2ddf082a5a2e18c3a0f3e0480179383fa8cd4c2b4829c8451156a9bff064c55989d444342b6f986c1060eba

Download Submit
memory/1700-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1700-1-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1700-2-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1700-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2500-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2500-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2500-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2500-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2500-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2620-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads