tofsee | 734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de

General

Target

JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe
Size

237KB
MD5

3f9580e7c89cc2d22f588f66933a2b55
SHA1

be3c020e42343867e8e1068033ffa86e65639b53
SHA256

734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de
SHA512

c60adc3c1c2667ad40a3e4ad7ee2101151621935081f82a37f6cb8631636c5432fe307d8cabf6e12be6ee7a019e8ed1745b18fb692f5b479c2103000e40a69f1
SSDEEP

6144:+jRN5kfRaTc+ww37vkSjX7ITsq7igavwVf:+dN5kfew+X79

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
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

pid	Process
1844	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\ukmgbvln\ImagePath = "C:\\Windows\\SysWOW64\\ukmgbvln\\uzjzns.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe

Deletes itself 1 IoCs

pid	Process
1032	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
788	uzjzns.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 788 set thread context of 1032	788	uzjzns.exe	96

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2068	sc.exe
4600	sc.exe
1092	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uzjzns.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 4628	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	83
PID 2060 wrote to memory of 4628	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	83
PID 2060 wrote to memory of 4628	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	83
PID 2060 wrote to memory of 4572	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	85
PID 2060 wrote to memory of 4572	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	85
PID 2060 wrote to memory of 4572	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	85
PID 2060 wrote to memory of 2068	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	87
PID 2060 wrote to memory of 2068	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	87
PID 2060 wrote to memory of 2068	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	87
PID 2060 wrote to memory of 4600	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	89
PID 2060 wrote to memory of 4600	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	89
PID 2060 wrote to memory of 4600	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	89
PID 2060 wrote to memory of 1092	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	91
PID 2060 wrote to memory of 1092	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	91
PID 2060 wrote to memory of 1092	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	91
PID 2060 wrote to memory of 1844	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	94
PID 2060 wrote to memory of 1844	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	94
PID 2060 wrote to memory of 1844	2060	JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe	94
PID 788 wrote to memory of 1032	788	uzjzns.exe	96
PID 788 wrote to memory of 1032	788	uzjzns.exe	96
PID 788 wrote to memory of 1032	788	uzjzns.exe	96
PID 788 wrote to memory of 1032	788	uzjzns.exe	96
PID 788 wrote to memory of 1032	788	uzjzns.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ukmgbvln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uzjzns.exe" C:\Windows\SysWOW64\ukmgbvln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ukmgbvln binPath= "C:\Windows\SysWOW64\ukmgbvln\uzjzns.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ukmgbvln "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ukmgbvln
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1092
- 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
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1844

C:\Windows\SysWOW64\ukmgbvln\uzjzns.exe
C:\Windows\SysWOW64\ukmgbvln\uzjzns.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_734eeb6ca8d2f16d680071810ea459f3babc4e510d8fca3667e93574790566de.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:788
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1032

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.2MB

MD5
730f26489c406024dc5d78676419c384

SHA1
6c6757133424ead6e5e42f86b2c4700661e62bf4

SHA256
31b6b631fad356cd67bd224cf50931ea02a3f3b9021575e88291f00d791fcc50

SHA512
036cf8d4a1ab59a4e8a88dc967d0ac85aed51b460f19840c42186d21da9be4043555fd6df933d1d01bc0ae2475db191b85a63119606ea4ac517b0fb4a57a9adc

Download Submit
memory/788-11-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/788-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/788-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/788-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1032-13-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/1032-17-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/1032-18-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/2060-7-0x0000000002050000-0x000000000205D000-memory.dmp

Filesize
52KB

Download
memory/2060-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2060-8-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/2060-0-0x0000000002050000-0x000000000205D000-memory.dmp

Filesize
52KB

Download
memory/2060-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2060-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2060-1-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads