tofsee | eeffceddf2c04dab253113f235d71f2a6a5fb168a2269c93dce441babc903ec0

General

Target

feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe
Size

13.9MB
MD5

feb278784fd5fa7005c523d96d0ffd96
SHA1

81c3074e1f08781abf9f8306fd5fdf8e1f8b9933
SHA256

eeffceddf2c04dab253113f235d71f2a6a5fb168a2269c93dce441babc903ec0
SHA512

d6bee25ebccbf39a1feb49696ed0efebb0d6e393c257ef285af001cfc5f5fa2e5175fc87c4d884b69e87d5d42d41ce40e0e7dd3344a294a6dea458c3dac72ea5
SSDEEP

6144:WeeKozztQBnWJ4ZF+PAb1nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn:WeeKozCBnuA

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

4004 netsh.exe

pid	process
4004	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\iatpzcya\ImagePath = "C:\\Windows\\SysWOW64\\iatpzcya\\ubzkpkym.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:

feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

236 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ubzkpkym.exe

pid process

1468 ubzkpkym.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ubzkpkym.exe

description pid process target process

PID 1468 set thread context of 236 1468 ubzkpkym.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

3252 sc.exe
2084 sc.exe
1836 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
236	svchost.exe

pid	process
1468	ubzkpkym.exe

description	pid	process	target process
PID 1468 set thread context of 236	1468	ubzkpkym.exe	svchost.exe

pid	process
3252	sc.exe
2084	sc.exe
1836	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

5048 212 WerFault.exe feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe
3460 1468 WerFault.exe ubzkpkym.exe

pid	pid_target	process	target process
5048	212	WerFault.exe	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe
3460	1468	WerFault.exe	ubzkpkym.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.exeubzkpkym.exesvchost.exefeb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.execmd.exesc.execmd.exesc.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ubzkpkym.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exeubzkpkym.exe

description	pid	process	target process
PID 212 wrote to memory of 3168	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 3168	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 3168	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 3344	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 3344	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 3344	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	cmd.exe
PID 212 wrote to memory of 3252	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 3252	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 3252	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 2084	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 2084	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 2084	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 1836	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 1836	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 1836	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	sc.exe
PID 212 wrote to memory of 4004	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	netsh.exe
PID 212 wrote to memory of 4004	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	netsh.exe
PID 212 wrote to memory of 4004	212	feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe	netsh.exe
PID 1468 wrote to memory of 236	1468	ubzkpkym.exe	svchost.exe
PID 1468 wrote to memory of 236	1468	ubzkpkym.exe	svchost.exe
PID 1468 wrote to memory of 236	1468	ubzkpkym.exe	svchost.exe
PID 1468 wrote to memory of 236	1468	ubzkpkym.exe	svchost.exe
PID 1468 wrote to memory of 236	1468	ubzkpkym.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iatpzcya\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ubzkpkym.exe" C:\Windows\SysWOW64\iatpzcya\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iatpzcya binPath= "C:\Windows\SysWOW64\iatpzcya\ubzkpkym.exe /d\"C:\Users\Admin\AppData\Local\Temp\feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iatpzcya "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iatpzcya
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1836
- 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:4004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 1144
  2⤵
  - Program crash
  PID:5048

C:\Windows\SysWOW64\iatpzcya\ubzkpkym.exe
C:\Windows\SysWOW64\iatpzcya\ubzkpkym.exe /d"C:\Users\Admin\AppData\Local\Temp\feb278784fd5fa7005c523d96d0ffd96_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 536
  2⤵
  - Program crash
  PID:3460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 212 -ip 212
1⤵
PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1468 -ip 1468
1⤵
PID:1376

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\ubzkpkym.exe

Filesize
10.7MB

MD5
52f3133171ca1f1d691b246207680d3d

SHA1
dbb85bf2fe81ff0a2996f30cb4d25402ed671097

SHA256
5cb61a3e87b7b4ce823a5ea2d8b17625ba384329721c7f7671bcf7b5007ca397

SHA512
dfe6f1228cd1077d442eb527f4e799919cefaedba683cdbd281fb1f18bd8f8b9bc4d06231c57cec9d4767a25671e4b5c8430bde078066651b4d2a494cba48c71

Download Submit
memory/212-8-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/212-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/212-2-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/212-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/212-9-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/212-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

Filesize
1024KB

Download
memory/236-14-0x0000000000820000-0x0000000000835000-memory.dmp

Filesize
84KB

Download
memory/236-12-0x0000000000820000-0x0000000000835000-memory.dmp

Filesize
84KB

Download
memory/236-17-0x0000000000820000-0x0000000000835000-memory.dmp

Filesize
84KB

Download
memory/1468-11-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/1468-15-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/1468-16-0x0000000000400000-0x000000000086C000-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