tofsee | 8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4

General

Target

JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe
Size

283KB
MD5

9f4582b83cdd1ff7bd7a9055bf48bf32
SHA1

275b08eee23369a36c2011d67c99f1ec0dd0af24
SHA256

8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4
SHA512

0f1f821921c3b9df09de92821a6630d5f9c886c706b793f3c0f2c49189235059a7a3cfe7507896cc2f4b37d5c4892b4787f959c9147c9e96f68f35d7a79fb470
SSDEEP

3072:aMfSQWigMDolLIUeaKEb1D1cKX7xc09ZOycvIAZgERt6NPtHvs+bxqkqbi0o83j1:aeSojoveyb1ZvLxB6g86P0+9io

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\uqdpjfkk\ImagePath = "C:\\Windows\\SysWOW64\\uqdpjfkk\\ovhudqrl.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe

Deletes itself 1 IoCs

pid	Process
4704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1744	ovhudqrl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1744 set thread context of 4704	1744	ovhudqrl.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4200	sc.exe
4748	sc.exe
1288	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2056	4244	WerFault.exe	81
4380	1744	WerFault.exe	92

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	ovhudqrl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.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
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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4244 wrote to memory of 2756	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	82
PID 4244 wrote to memory of 2756	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	82
PID 4244 wrote to memory of 2756	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	82
PID 4244 wrote to memory of 3512	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	84
PID 4244 wrote to memory of 3512	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	84
PID 4244 wrote to memory of 3512	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	84
PID 4244 wrote to memory of 4200	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	86
PID 4244 wrote to memory of 4200	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	86
PID 4244 wrote to memory of 4200	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	86
PID 4244 wrote to memory of 4748	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	88
PID 4244 wrote to memory of 4748	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	88
PID 4244 wrote to memory of 4748	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	88
PID 4244 wrote to memory of 1288	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	90
PID 4244 wrote to memory of 1288	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	90
PID 4244 wrote to memory of 1288	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	90
PID 4244 wrote to memory of 3172	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	93
PID 4244 wrote to memory of 3172	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	93
PID 4244 wrote to memory of 3172	4244	JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe	93
PID 1744 wrote to memory of 4704	1744	ovhudqrl.exe	98
PID 1744 wrote to memory of 4704	1744	ovhudqrl.exe	98
PID 1744 wrote to memory of 4704	1744	ovhudqrl.exe	98
PID 1744 wrote to memory of 4704	1744	ovhudqrl.exe	98
PID 1744 wrote to memory of 4704	1744	ovhudqrl.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uqdpjfkk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ovhudqrl.exe" C:\Windows\SysWOW64\uqdpjfkk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uqdpjfkk binPath= "C:\Windows\SysWOW64\uqdpjfkk\ovhudqrl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uqdpjfkk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uqdpjfkk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1288
- 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\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 1044
  2⤵
  - Program crash
  PID:2056

C:\Windows\SysWOW64\uqdpjfkk\ovhudqrl.exe
C:\Windows\SysWOW64\uqdpjfkk\ovhudqrl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a58cd77a16cf1b24e676f63f527d54a0443dcf844233909b3ebec736cd54cd4.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1744 -s 540
  2⤵
  - Program crash
  PID:4380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4244 -ip 4244
1⤵
PID:2980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1744 -ip 1744
1⤵
PID:4656

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\ovhudqrl.exe

Filesize
10.2MB

MD5
f90074b3263d9e7e5409eb926a56bcc7

SHA1
afe83119e5d70bbea478a49a0512476d4aa86348

SHA256
4e4cab63b4c2f51912273c280fe8a0b86272e05aa81597a0298cb6a7e75b3375

SHA512
500899a20a2a8b937ccbeb8818f8f4c0a80a8ad22c132ec4ab09810d40b9b035e57777c2c371dedea6518f5744612c9c0d9ecda04a2b019ecb90fe2ed2d0a3c4

Download Submit
memory/1744-15-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/4244-1-0x0000000002DC0000-0x0000000002EC0000-memory.dmp

Filesize
1024KB

Download
memory/4244-2-0x0000000003000000-0x0000000003013000-memory.dmp

Filesize
76KB

Download
memory/4244-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4244-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4244-9-0x0000000003000000-0x0000000003013000-memory.dmp

Filesize
76KB

Download
memory/4244-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/4704-13-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/4704-11-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/4704-14-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads