tofsee | 55dacf5412f89d111de8f577d2dbc35d8c309651de0b137807efca66e90c6913

General

Target

fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe
Size

14.3MB
MD5

fc375afd6e19021f99dba8859321d797
SHA1

40ea7fd6cdb00ac865eef58b88baa2a4585275a1
SHA256

55dacf5412f89d111de8f577d2dbc35d8c309651de0b137807efca66e90c6913
SHA512

50aee8181165f0b8e310d4be2ca5f0e5679254443f6a7639c3b878a3ed59b9d22b366ebbd920fff8fcada37da03f3029b7f1e596246f6df7afcae30f65064532
SSDEEP

98304:LNWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllll7:pW

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\ihedbfxg = "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

2716 netsh.exe

pid	process
2716	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\ihedbfxg\ImagePath = "C:\\Windows\\SysWOW64\\ihedbfxg\\kpzuoaxz.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1948 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kpzuoaxz.exe

pid process

2864 kpzuoaxz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kpzuoaxz.exe

description pid process target process

PID 2864 set thread context of 1948 2864 kpzuoaxz.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

2740 sc.exe
2592 sc.exe
2920 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1948	svchost.exe

pid	process
2864	kpzuoaxz.exe

description	pid	process	target process
PID 2864 set thread context of 1948	2864	kpzuoaxz.exe	svchost.exe

pid	process
2740	sc.exe
2592	sc.exe
2920	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fc375afd6e19021f99dba8859321d797_JaffaCakes118.exekpzuoaxz.exe

description	pid	process	target process
PID 1996 wrote to memory of 2532	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	cmd.exe
PID 1996 wrote to memory of 2532	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	cmd.exe
PID 1996 wrote to memory of 2532	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	cmd.exe
PID 1996 wrote to memory of 2532	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	cmd.exe
PID 1996 wrote to memory of 2552	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	cmd.exe
PID 1996 wrote to memory of 2552	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	cmd.exe
PID 1996 wrote to memory of 2552	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	cmd.exe
PID 1996 wrote to memory of 2552	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	cmd.exe
PID 1996 wrote to memory of 2740	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2740	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2740	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2740	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2592	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2592	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2592	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2592	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2920	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2920	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2920	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2920	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	sc.exe
PID 1996 wrote to memory of 2716	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	netsh.exe
PID 1996 wrote to memory of 2716	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	netsh.exe
PID 1996 wrote to memory of 2716	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	netsh.exe
PID 1996 wrote to memory of 2716	1996	fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe	netsh.exe
PID 2864 wrote to memory of 1948	2864	kpzuoaxz.exe	svchost.exe
PID 2864 wrote to memory of 1948	2864	kpzuoaxz.exe	svchost.exe
PID 2864 wrote to memory of 1948	2864	kpzuoaxz.exe	svchost.exe
PID 2864 wrote to memory of 1948	2864	kpzuoaxz.exe	svchost.exe
PID 2864 wrote to memory of 1948	2864	kpzuoaxz.exe	svchost.exe
PID 2864 wrote to memory of 1948	2864	kpzuoaxz.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ihedbfxg\
2⤵
PID:2532

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kpzuoaxz.exe" C:\Windows\SysWOW64\ihedbfxg\
2⤵
PID:2552

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ihedbfxg binPath= "C:\Windows\SysWOW64\ihedbfxg\kpzuoaxz.exe /d\"C:\Users\Admin\AppData\Local\Temp\fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2740

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ihedbfxg "wifi internet conection"
2⤵
- Launches sc.exe
PID:2592

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ihedbfxg
2⤵
- Launches sc.exe
PID:2920

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:2716

C:\Windows\SysWOW64\ihedbfxg\kpzuoaxz.exe
C:\Windows\SysWOW64\ihedbfxg\kpzuoaxz.exe /d"C:\Users\Admin\AppData\Local\Temp\fc375afd6e19021f99dba8859321d797_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2864

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1948

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\kpzuoaxz.exe

Filesize
14.0MB

MD5
56f1f0160c01dc72fe7e631d667e2341

SHA1
27dfd6dc3a60a15ffeaba21a5bfd740811641880

SHA256
c81e3d0b0e1cd16e9c350ba6365e0874c97a84d03030815c37c05e5c308a641d

SHA512
a100852bd226d21a2a811a6c7a735fffe010a90c6fe28d92a54cebf35809dad1790a1ae365cb3ea24c8bb4902236c537a1f019bd6f4bc617fd228b5982633c30

Download Submit
memory/1948-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1948-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1948-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1948-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1948-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1948-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1996-7-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1996-1-0x00000000037F0000-0x00000000038F0000-memory.dmp

Filesize
1024KB

Download
memory/1996-4-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/1996-6-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/1996-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2864-12-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2864-10-0x0000000003780000-0x0000000003880000-memory.dmp

Filesize
1024KB

Download
memory/2864-17-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads