tofsee | ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2

General

Target

JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe
Size

160KB
MD5

23372be181de07142d652d0cf68d98e8
SHA1

37facb53bc41fa1cc38eef318ef4dab567a4ca2a
SHA256

ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2
SHA512

5e0a98d7e0330146966e03b658e9f8b24e4b3f793d71ac477ede5adc44c13498285983b5967e95ce4ec5f6979370b570cd120c6152f4ba8907f7de3d7a24d66b
SSDEEP

3072:ilNGUja6RgviBlN7pZk9r+k7V6hBqeAH:KGUduol9kwvFA

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
2148	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\jspjxeii\ImagePath = "C:\\Windows\\SysWOW64\\jspjxeii\\hrwjqlkz.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe

Deletes itself 1 IoCs

pid	Process
1424	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1512	hrwjqlkz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1512 set thread context of 1424	1512	hrwjqlkz.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
4548	sc.exe
2300	sc.exe
1912	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2696	1512	WerFault.exe	92
5000	2748	WerFault.exe	81

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hrwjqlkz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 1704	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	82
PID 2748 wrote to memory of 1704	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	82
PID 2748 wrote to memory of 1704	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	82
PID 2748 wrote to memory of 1876	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	84
PID 2748 wrote to memory of 1876	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	84
PID 2748 wrote to memory of 1876	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	84
PID 2748 wrote to memory of 4548	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	86
PID 2748 wrote to memory of 4548	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	86
PID 2748 wrote to memory of 4548	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	86
PID 2748 wrote to memory of 2300	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	88
PID 2748 wrote to memory of 2300	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	88
PID 2748 wrote to memory of 2300	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	88
PID 2748 wrote to memory of 1912	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	90
PID 2748 wrote to memory of 1912	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	90
PID 2748 wrote to memory of 1912	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	90
PID 1512 wrote to memory of 1424	1512	hrwjqlkz.exe	93
PID 1512 wrote to memory of 1424	1512	hrwjqlkz.exe	93
PID 1512 wrote to memory of 1424	1512	hrwjqlkz.exe	93
PID 1512 wrote to memory of 1424	1512	hrwjqlkz.exe	93
PID 1512 wrote to memory of 1424	1512	hrwjqlkz.exe	93
PID 2748 wrote to memory of 2148	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	95
PID 2748 wrote to memory of 2148	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	95
PID 2748 wrote to memory of 2148	2748	JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jspjxeii\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hrwjqlkz.exe" C:\Windows\SysWOW64\jspjxeii\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jspjxeii binPath= "C:\Windows\SysWOW64\jspjxeii\hrwjqlkz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jspjxeii "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jspjxeii
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1912
- 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:2148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 1028
  2⤵
  - Program crash
  PID:5000

C:\Windows\SysWOW64\jspjxeii\hrwjqlkz.exe
C:\Windows\SysWOW64\jspjxeii\hrwjqlkz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed6a5352d6ae2913f1ac8a3e2304f11ab3e0422f96c8b594d89d031a8d6410d2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 512
  2⤵
  - Program crash
  PID:2696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1512 -ip 1512
1⤵
PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2748 -ip 2748
1⤵
PID:1472

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\hrwjqlkz.exe

Filesize
13.0MB

MD5
bca895020da6356aca7686223901dd11

SHA1
fc4df2b2516d27cbad0ac04ea7f888cb1ba301e2

SHA256
6c34da9f223ab84316aeb5b4803f2740d1ee8f7a5a843fba5ea4ca2902cccb43

SHA512
1ea9df078062744083aba24ea2bd7298070670004638c3d60d1a84dac8488b5f53ac10a8ed37660ec0c151f8bb2d05cc2d5beb747a9c90095f5a904c473e95d0

Download Submit
memory/1424-8-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/1424-20-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/1424-19-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/1424-18-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/1424-11-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/1512-13-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1512-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1512-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2748-0-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download
memory/2748-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2748-15-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download
memory/2748-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2748-16-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/2748-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2748-1-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads