tofsee | 18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b

General

Target

JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe
Size

146KB
MD5

23bdb6333269fdd7c286742e9964d04e
SHA1

043b6cea048f3e2bb09c60e6b7a732f7c4522720
SHA256

18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b
SHA512

b16321669cc825afd184394a9693d1c508b317a75af918e7dca507d290f5eb70d3b10fc76c9372463db1afd6b14655e0a5d7f8a2a7a13b943b80f50801fb14a3
SSDEEP

3072:leRcOvgBZ3qPqLigLEoFMHxZnxqfPSAaz:lhOIB0zGEbqfXU

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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
3172	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\hpviuupx\ImagePath = "C:\\Windows\\SysWOW64\\hpviuupx\\dknlmmcq.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_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe

Deletes itself 1 IoCs

pid	Process
4468	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1432	dknlmmcq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1432 set thread context of 4468	1432	dknlmmcq.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
5000	sc.exe
3076	sc.exe
3084	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	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dknlmmcq.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 4312	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	82
PID 3820 wrote to memory of 4312	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	82
PID 3820 wrote to memory of 4312	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	82
PID 3820 wrote to memory of 5112	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	84
PID 3820 wrote to memory of 5112	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	84
PID 3820 wrote to memory of 5112	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	84
PID 3820 wrote to memory of 3084	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	86
PID 3820 wrote to memory of 3084	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	86
PID 3820 wrote to memory of 3084	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	86
PID 3820 wrote to memory of 5000	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	88
PID 3820 wrote to memory of 5000	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	88
PID 3820 wrote to memory of 5000	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	88
PID 3820 wrote to memory of 3076	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	90
PID 3820 wrote to memory of 3076	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	90
PID 3820 wrote to memory of 3076	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	90
PID 3820 wrote to memory of 3172	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	93
PID 3820 wrote to memory of 3172	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	93
PID 3820 wrote to memory of 3172	3820	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	93
PID 1432 wrote to memory of 4468	1432	dknlmmcq.exe	95
PID 1432 wrote to memory of 4468	1432	dknlmmcq.exe	95
PID 1432 wrote to memory of 4468	1432	dknlmmcq.exe	95
PID 1432 wrote to memory of 4468	1432	dknlmmcq.exe	95
PID 1432 wrote to memory of 4468	1432	dknlmmcq.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hpviuupx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dknlmmcq.exe" C:\Windows\SysWOW64\hpviuupx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hpviuupx binPath= "C:\Windows\SysWOW64\hpviuupx\dknlmmcq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hpviuupx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hpviuupx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3076
- 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:3172

C:\Windows\SysWOW64\hpviuupx\dknlmmcq.exe
C:\Windows\SysWOW64\hpviuupx\dknlmmcq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4468

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\dknlmmcq.exe

Filesize
12.5MB

MD5
2f5c51c3f75babd5a3beda41bb59eb06

SHA1
bef027a094cd2c435afa2f0c2857b1507a09b52e

SHA256
9d20138c6fff97b5ad797cd99d0d29e0cc47146eb46212e2481ec65336824142

SHA512
140a408d63c59bc6de124e6be75f08155a59a010af49f06d4830fef728bc3962b2ee6cef9ba42022ae35f01259f0782a0577d4f8986b66dfc3505612dae6cea1

Download Submit
memory/1432-13-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1432-11-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1432-12-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1432-18-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/3820-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3820-2-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download
memory/3820-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3820-9-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download
memory/3820-8-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/3820-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/4468-14-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download
memory/4468-16-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download
memory/4468-19-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads