tofsee | 7ec2f5fa69e89fa6c3e23ff269f55517ad6ccf833db9c33d13abeae3fe0eaf0f

General

Target

15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe
Size

10.7MB
MD5

15abd71fa9afdedfbc3f64e46c477ded
SHA1

4497a99e9a59dd93c0cf04ea356f491ae39bf709
SHA256

7ec2f5fa69e89fa6c3e23ff269f55517ad6ccf833db9c33d13abeae3fe0eaf0f
SHA512

51f6016b01d29ca1d0b3f233de56fcf8fa9d31ed104f1a8be7c0f8fbe6ab15a4d6d0e2ba98bb5f759f180d9e1a8faa1b41ea523aba8b6b37e2beebed74c0f89d
SSDEEP

6144:tvk9RADRUv1CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCP:uRAD

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
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
2744	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\oozmtage\ImagePath = "C:\\Windows\\SysWOW64\\oozmtage\\ignjirpg.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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
212	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5084	ignjirpg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5084 set thread context of 212	5084	ignjirpg.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4992	sc.exe
3536	sc.exe
4628	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	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ignjirpg.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	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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2596	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	88
PID 2256 wrote to memory of 2596	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	88
PID 2256 wrote to memory of 2596	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	88
PID 2256 wrote to memory of 228	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	91
PID 2256 wrote to memory of 228	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	91
PID 2256 wrote to memory of 228	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	91
PID 2256 wrote to memory of 4992	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	93
PID 2256 wrote to memory of 4992	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	93
PID 2256 wrote to memory of 4992	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	93
PID 2256 wrote to memory of 3536	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	95
PID 2256 wrote to memory of 3536	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	95
PID 2256 wrote to memory of 3536	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	95
PID 2256 wrote to memory of 4628	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	97
PID 2256 wrote to memory of 4628	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	97
PID 2256 wrote to memory of 4628	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	97
PID 5084 wrote to memory of 212	5084	ignjirpg.exe	100
PID 5084 wrote to memory of 212	5084	ignjirpg.exe	100
PID 5084 wrote to memory of 212	5084	ignjirpg.exe	100
PID 5084 wrote to memory of 212	5084	ignjirpg.exe	100
PID 5084 wrote to memory of 212	5084	ignjirpg.exe	100
PID 2256 wrote to memory of 2744	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	103
PID 2256 wrote to memory of 2744	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	103
PID 2256 wrote to memory of 2744	2256	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	103

C:\Users\Admin\AppData\Local\Temp\15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oozmtage\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ignjirpg.exe" C:\Windows\SysWOW64\oozmtage\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oozmtage binPath= "C:\Windows\SysWOW64\oozmtage\ignjirpg.exe /d\"C:\Users\Admin\AppData\Local\Temp\15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oozmtage "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oozmtage
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4628
- 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:2744

C:\Windows\SysWOW64\oozmtage\ignjirpg.exe
C:\Windows\SysWOW64\oozmtage\ignjirpg.exe /d"C:\Users\Admin\AppData\Local\Temp\15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:212

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\ignjirpg.exe

Filesize
13.8MB

MD5
5c8272b32cd8e5a7dc016863f2db6185

SHA1
7f5ee37a5799da66114edb9ee5b878be07d12316

SHA256
3ede767c3aad8b2d7a1c2f26786e1f01ae431ce1f7d326f7986d154df5c0e61a

SHA512
57e80e0510e067cd485e4ee787ca4188587efdf8cb6949dde654c8db7da973307fd7b5aa9dfe78eab6f0aa5f7fea018d8b65cc76cfa1179e83b8704579ac4e40

Download Submit
memory/212-9-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/212-13-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/212-15-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/212-16-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/212-17-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/2256-2-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2256-1-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/2256-0-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/2256-14-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/5084-6-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/5084-8-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/5084-12-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads