tofsee | cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac

General

Target

JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe
Size

165KB
MD5

f0d2f02caedf76608c0e28ed847d3938
SHA1

9a936ac3d1ea6fe5b7910c9e324aa1e20b0c5fbb
SHA256

cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac
SHA512

b7091d2c27d15e053c02c59182917da3a6b3d3d2d7ee6db7836cfd329f41ec27438d6c524fa3393622624407370674814fc518a003e58b577ac45b714b63f260
SSDEEP

3072:JuerXeNjwKrCnQRYFGOFbNflNHfs2d4BnRoG2:VrXOjwWtr8bn9s2yC

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
4800	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\zgymxmuv\ImagePath = "C:\\Windows\\SysWOW64\\zgymxmuv\\zjobidcr.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_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe

Executes dropped EXE 1 IoCs

pid	Process
916	zjobidcr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 916 set thread context of 3320	916	zjobidcr.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
1320	sc.exe
1304	sc.exe
800	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zjobidcr.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 1836	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	83
PID 824 wrote to memory of 1836	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	83
PID 824 wrote to memory of 1836	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	83
PID 824 wrote to memory of 2008	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	85
PID 824 wrote to memory of 2008	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	85
PID 824 wrote to memory of 2008	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	85
PID 824 wrote to memory of 1320	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	87
PID 824 wrote to memory of 1320	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	87
PID 824 wrote to memory of 1320	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	87
PID 824 wrote to memory of 1304	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	89
PID 824 wrote to memory of 1304	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	89
PID 824 wrote to memory of 1304	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	89
PID 824 wrote to memory of 800	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	91
PID 824 wrote to memory of 800	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	91
PID 824 wrote to memory of 800	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	91
PID 916 wrote to memory of 3320	916	zjobidcr.exe	95
PID 916 wrote to memory of 3320	916	zjobidcr.exe	95
PID 916 wrote to memory of 3320	916	zjobidcr.exe	95
PID 916 wrote to memory of 3320	916	zjobidcr.exe	95
PID 916 wrote to memory of 3320	916	zjobidcr.exe	95
PID 824 wrote to memory of 4800	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	96
PID 824 wrote to memory of 4800	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	96
PID 824 wrote to memory of 4800	824	JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zgymxmuv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zjobidcr.exe" C:\Windows\SysWOW64\zgymxmuv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zgymxmuv binPath= "C:\Windows\SysWOW64\zgymxmuv\zjobidcr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zgymxmuv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zgymxmuv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:800
- 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:4800

C:\Windows\SysWOW64\zgymxmuv\zjobidcr.exe
C:\Windows\SysWOW64\zgymxmuv\zjobidcr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  PID:3320

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\zjobidcr.exe

Filesize
10.4MB

MD5
9a3c4ac1e769497fd123022d6971f4e1

SHA1
76a51554ca01f833f5340284268ac1d1626c1f66

SHA256
0b35ec697f406be2e6364330a80a1c5db1bf1e7fc3a08b00182d9713879e247f

SHA512
43f8a8d6b7254e27a7af2d73696216a86e4b663915812183d6bf903b133a27d8cccd4d08b2c2f09d38d0aa053ba5c8783f71f7dcf609efbc849153cbd649512d

Download Submit
memory/824-13-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/824-1-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/824-0-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/824-17-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/824-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/824-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/824-14-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/916-16-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/916-6-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/916-7-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/916-8-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3320-9-0x0000000000C40000-0x0000000000C55000-memory.dmp

Filesize
84KB

Download
memory/3320-12-0x0000000000C40000-0x0000000000C55000-memory.dmp

Filesize
84KB

Download
memory/3320-19-0x0000000000C40000-0x0000000000C55000-memory.dmp

Filesize
84KB

Download
memory/3320-20-0x0000000000C40000-0x0000000000C55000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads