tofsee | 85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895

General

Target

JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe
Size

220KB
MD5

472f3c93a3a556b6d411fc8545f499a2
SHA1

0b3c535e3a9eb288cc6d1f288b81b10528e62515
SHA256

85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895
SHA512

7aaf7f56bb3d9f177f01d83662ddc915405c175403466fe854d6cbc81f825f9a26c724d07f308f6ae2f288bd75840024a8065306167c1d178ba8edb3e96809df
SSDEEP

3072:jQ2Bp+bjYIVbAEz26obfSW2HDy5LZUJ98Wrxpzbgqru+sxkgaBChaz1Y:sQ+PYMby7S/Qq6uzbgwu7igaT

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
1048	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\hnyeelgd\ImagePath = "C:\\Windows\\SysWOW64\\hnyeelgd\\kxgdejvi.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe

Deletes itself 1 IoCs

pid	Process
3704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	kxgdejvi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5048 set thread context of 3704	5048	kxgdejvi.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4968	sc.exe
3960	sc.exe
4812	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4700	732	WerFault.exe	84
2348	5048	WerFault.exe	96

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	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.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	cmd.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	kxgdejvi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 732 wrote to memory of 2280	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	85
PID 732 wrote to memory of 2280	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	85
PID 732 wrote to memory of 2280	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	85
PID 732 wrote to memory of 2284	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	87
PID 732 wrote to memory of 2284	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	87
PID 732 wrote to memory of 2284	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	87
PID 732 wrote to memory of 4968	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	89
PID 732 wrote to memory of 4968	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	89
PID 732 wrote to memory of 4968	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	89
PID 732 wrote to memory of 3960	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	91
PID 732 wrote to memory of 3960	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	91
PID 732 wrote to memory of 3960	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	91
PID 732 wrote to memory of 4812	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	94
PID 732 wrote to memory of 4812	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	94
PID 732 wrote to memory of 4812	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	94
PID 732 wrote to memory of 1048	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	97
PID 732 wrote to memory of 1048	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	97
PID 732 wrote to memory of 1048	732	JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe	97
PID 5048 wrote to memory of 3704	5048	kxgdejvi.exe	103
PID 5048 wrote to memory of 3704	5048	kxgdejvi.exe	103
PID 5048 wrote to memory of 3704	5048	kxgdejvi.exe	103
PID 5048 wrote to memory of 3704	5048	kxgdejvi.exe	103
PID 5048 wrote to memory of 3704	5048	kxgdejvi.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hnyeelgd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kxgdejvi.exe" C:\Windows\SysWOW64\hnyeelgd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hnyeelgd binPath= "C:\Windows\SysWOW64\hnyeelgd\kxgdejvi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hnyeelgd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hnyeelgd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4812
- 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:1048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 732 -s 1044
  2⤵
  - Program crash
  PID:4700

C:\Windows\SysWOW64\hnyeelgd\kxgdejvi.exe
C:\Windows\SysWOW64\hnyeelgd\kxgdejvi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85ef810dd3d85f2a30e50d652aca8dd3e85933eaccfd3efa735bae6e26fff895.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 532
  2⤵
  - Program crash
  PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 732 -ip 732
1⤵
PID:2092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5048 -ip 5048
1⤵
PID:2236

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\kxgdejvi.exe

Filesize
12.1MB

MD5
440f23c186fcf8a583750809bebe9948

SHA1
25d2ac47281d4927c58514f801f76b3b1ace690f

SHA256
bd7758642d625d980f41ecb8ace58d5e2c7448adebeec9d5b954f97338cd774c

SHA512
44c46075ff56ec3c0639a08e562d824d5f2ed6671eff23a6236f4d504445377193e07b600c01d2678e5a17abbc741b948e87db9f80253b59d420b4ebe4dd1110

Download Submit
memory/732-14-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/732-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/732-1-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/732-0-0x0000000002050000-0x000000000205D000-memory.dmp

Filesize
52KB

Download
memory/732-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/732-13-0x0000000002050000-0x000000000205D000-memory.dmp

Filesize
52KB

Download
memory/732-12-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/3704-19-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/3704-8-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/3704-11-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/3704-17-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/3704-18-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/5048-6-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/5048-16-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/5048-7-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads