tofsee | 2ff16c73081301f457fc856f458d129953fbb7294273f31315b35fa6f71f2a0d

General

Target

78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe
Size

12.9MB
MD5

78acc85d9c1ff8bcd03cf9a15fec8d08
SHA1

92dec1567b3cb8d70ae8397110b8a82c30b5ca06
SHA256

2ff16c73081301f457fc856f458d129953fbb7294273f31315b35fa6f71f2a0d
SHA512

b4241c7aab47766929d0d86c008917be2ccb11b262f16144c0ed865e67b9f1a5b99d666c807cf0e4008443038c276e22c39fd74bd71a4a001878f7db27f7c202
SSDEEP

49152:qcUGb2222222222222222222222222222222222222222222222222222222222G:qcU

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation 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
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
1724	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\fqhmomva\ImagePath = "C:\\Windows\\SysWOW64\\fqhmomva\\zeojdpmo.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
676	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1112	zeojdpmo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1112 set thread context of 676	1112	zeojdpmo.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
1876	sc.exe
2616	sc.exe
832	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3200	4688	WerFault.exe	83
632	1112	WerFault.exe	100

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.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	svchost.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	zeojdpmo.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 1696	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	87
PID 4688 wrote to memory of 1696	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	87
PID 4688 wrote to memory of 1696	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	87
PID 4688 wrote to memory of 2080	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	89
PID 4688 wrote to memory of 2080	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	89
PID 4688 wrote to memory of 2080	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	89
PID 4688 wrote to memory of 1876	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	92
PID 4688 wrote to memory of 1876	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	92
PID 4688 wrote to memory of 1876	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	92
PID 4688 wrote to memory of 2616	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	96
PID 4688 wrote to memory of 2616	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	96
PID 4688 wrote to memory of 2616	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	96
PID 4688 wrote to memory of 832	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	98
PID 4688 wrote to memory of 832	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	98
PID 4688 wrote to memory of 832	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	98
PID 4688 wrote to memory of 1724	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	101
PID 4688 wrote to memory of 1724	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	101
PID 4688 wrote to memory of 1724	4688	78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe	101
PID 1112 wrote to memory of 676	1112	zeojdpmo.exe	107
PID 1112 wrote to memory of 676	1112	zeojdpmo.exe	107
PID 1112 wrote to memory of 676	1112	zeojdpmo.exe	107
PID 1112 wrote to memory of 676	1112	zeojdpmo.exe	107
PID 1112 wrote to memory of 676	1112	zeojdpmo.exe	107

C:\Users\Admin\AppData\Local\Temp\78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fqhmomva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zeojdpmo.exe" C:\Windows\SysWOW64\fqhmomva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fqhmomva binPath= "C:\Windows\SysWOW64\fqhmomva\zeojdpmo.exe /d\"C:\Users\Admin\AppData\Local\Temp\78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fqhmomva "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2616
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fqhmomva
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:832
- 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:1724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4688 -s 668
  2⤵
  - Program crash
  PID:3200

C:\Windows\SysWOW64\fqhmomva\zeojdpmo.exe
C:\Windows\SysWOW64\fqhmomva\zeojdpmo.exe /d"C:\Users\Admin\AppData\Local\Temp\78acc85d9c1ff8bcd03cf9a15fec8d08_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1112 -s 520
  2⤵
  - Program crash
  PID:632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4688 -ip 4688
1⤵
PID:2516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1112 -ip 1112
1⤵
PID:1152

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\zeojdpmo.exe

Filesize
13.0MB

MD5
cda2d379283bd66f7e8870cc08c57162

SHA1
b35ccb20ddf2c291a397c3cf9555752143e4f675

SHA256
d7639fd771f0c834619effbf3762c04290678e589e27e736f6277e5699be5095

SHA512
7ff49165f4cbfe745d9cb1e8644ce6af6f53590586ea755531c0aab084be22bee4a91237b5d732946ced3dcfc16c3bdccfd59845c70af040eb55ebbf1a079b43

Download Submit
memory/676-10-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/676-17-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/676-18-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/1112-8-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1112-9-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1112-16-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4688-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4688-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4688-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

Filesize
1024KB

Download
memory/4688-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4688-13-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4688-12-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads