tofsee | ada1625907b9d1a90cb4ee844b69b9c66ea0c520bbf05c6a73e0812e435fa8da

General

Target

e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe
Size

14.3MB
MD5

e856a93a08f97a40c1e08805ceff132e
SHA1

5e5834e448da4c412fc63e4b9d3fe3f4ac0bb0aa
SHA256

ada1625907b9d1a90cb4ee844b69b9c66ea0c520bbf05c6a73e0812e435fa8da
SHA512

791c044b02f574c2b84fae88cf60c7a2a085eba8bfc676d15d49aec499590aa238f8300dbab3c9bf28bbb12a7d9d88d07a34ab7d9d01b357e7cc23382b0d3e80
SSDEEP

49152:bsOuBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBJ:bL

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
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

Processes:

netsh.exe

pid process

840 netsh.exe

pid	process
840	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\qygwprzg\ImagePath = "C:\\Windows\\SysWOW64\\qygwprzg\\wdgeffvj.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

Processes:

e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2576 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wdgeffvj.exe

pid process

3484 wdgeffvj.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wdgeffvj.exe

description pid process target process

PID 3484 set thread context of 2576 3484 wdgeffvj.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

744 sc.exe
2356 sc.exe
3652 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2576	svchost.exe

pid	process
3484	wdgeffvj.exe

description	pid	process	target process
PID 3484 set thread context of 2576	3484	wdgeffvj.exe	svchost.exe

pid	process
744	sc.exe
2356	sc.exe
3652	sc.exe

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

Processes:

netsh.exe

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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2376 3940 WerFault.exe e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe
1504 3484 WerFault.exe wdgeffvj.exe

pid	pid_target	process	target process
2376	3940	WerFault.exe	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe
1504	3484	WerFault.exe	wdgeffvj.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

Processes:

sc.exesc.exesc.execmd.execmd.exenetsh.exewdgeffvj.exesvchost.exee856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe

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	sc.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wdgeffvj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exewdgeffvj.exe

description	pid	process	target process
PID 3940 wrote to memory of 4428	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	cmd.exe
PID 3940 wrote to memory of 4428	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	cmd.exe
PID 3940 wrote to memory of 4428	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	cmd.exe
PID 3940 wrote to memory of 2892	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	cmd.exe
PID 3940 wrote to memory of 2892	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	cmd.exe
PID 3940 wrote to memory of 2892	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	cmd.exe
PID 3940 wrote to memory of 3652	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 3652	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 3652	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 744	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 744	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 744	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 2356	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 2356	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 2356	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	sc.exe
PID 3940 wrote to memory of 840	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	netsh.exe
PID 3940 wrote to memory of 840	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	netsh.exe
PID 3940 wrote to memory of 840	3940	e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe	netsh.exe
PID 3484 wrote to memory of 2576	3484	wdgeffvj.exe	svchost.exe
PID 3484 wrote to memory of 2576	3484	wdgeffvj.exe	svchost.exe
PID 3484 wrote to memory of 2576	3484	wdgeffvj.exe	svchost.exe
PID 3484 wrote to memory of 2576	3484	wdgeffvj.exe	svchost.exe
PID 3484 wrote to memory of 2576	3484	wdgeffvj.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qygwprzg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wdgeffvj.exe" C:\Windows\SysWOW64\qygwprzg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qygwprzg binPath= "C:\Windows\SysWOW64\qygwprzg\wdgeffvj.exe /d\"C:\Users\Admin\AppData\Local\Temp\e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qygwprzg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qygwprzg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2356
- 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:840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3940 -s 1276
  2⤵
  - Program crash
  PID:2376

C:\Windows\SysWOW64\qygwprzg\wdgeffvj.exe
C:\Windows\SysWOW64\qygwprzg\wdgeffvj.exe /d"C:\Users\Admin\AppData\Local\Temp\e856a93a08f97a40c1e08805ceff132e_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3484
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 516
  2⤵
  - Program crash
  PID:1504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3940 -ip 3940
1⤵
PID:2980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3484 -ip 3484
1⤵
PID:1648

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3804,i,3387628439405076340,17957358341235678872,262144 --variations-seed-version --mojo-platform-channel-handle=4220 /prefetch:8
1⤵
PID:1696

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\wdgeffvj.exe

Filesize
14.8MB

MD5
187522cfbed471a3c9925b735b5ef37d

SHA1
b07fc4f9087b7cc53f5e8f770503a0bffcbbfb90

SHA256
85d60689b4df259d9b77b0b24790bb22461524b6ec3ed3db013a506b93ed3e46

SHA512
f6861258546e02d62008fd0ca2ebe2f975e62a3ad5c5b3a449d6610b304ab524d2ce070d8e66f443b9c59c8547c488dbe887cd8dad3acd21e47aa4b51c9c9077

Download Submit
memory/2576-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2576-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2576-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3484-11-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3484-16-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3484-12-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3484-19-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3940-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3940-2-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/3940-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3940-9-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/3940-1-0x0000000000A80000-0x0000000000B80000-memory.dmp

Filesize
1024KB

Download
memory/3940-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads