tofsee | a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60

General

Target

JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe
Size

289KB
MD5

82845a403854a1f7eb1d89706dd6bde1
SHA1

08d17dabc37b3641d6ab803f5b72a82ba5132947
SHA256

a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60
SHA512

dd33440678c7aa7b11126cdf6840033e999c4eb04b7f80d8509fb63e3e1c39df3fde7679ae042367416669649082f33e4cef909d8a21189eee1af01b48053e24
SSDEEP

6144:uJBlewtGLSgZiJqm0kUOE/pAwCdMNfc4FROhxxpeTr/ekI:0lBGPZiMm0kxE/pOzzxp6L

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
1972	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\ydqrsixq\ImagePath = "C:\\Windows\\SysWOW64\\ydqrsixq\\sqfrlhsi.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe

Deletes itself 1 IoCs

pid	Process
1180	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	sqfrlhsi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 1180	2696	sqfrlhsi.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3696	sc.exe
1104	sc.exe
3972	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
8	4448	WerFault.exe	81
2640	2696	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.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	sqfrlhsi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4448 wrote to memory of 3648	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	82
PID 4448 wrote to memory of 3648	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	82
PID 4448 wrote to memory of 3648	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	82
PID 4448 wrote to memory of 4648	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	84
PID 4448 wrote to memory of 4648	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	84
PID 4448 wrote to memory of 4648	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	84
PID 4448 wrote to memory of 3972	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	86
PID 4448 wrote to memory of 3972	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	86
PID 4448 wrote to memory of 3972	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	86
PID 4448 wrote to memory of 3696	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	88
PID 4448 wrote to memory of 3696	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	88
PID 4448 wrote to memory of 3696	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	88
PID 4448 wrote to memory of 1104	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	90
PID 4448 wrote to memory of 1104	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	90
PID 4448 wrote to memory of 1104	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	90
PID 4448 wrote to memory of 1972	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	93
PID 4448 wrote to memory of 1972	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	93
PID 4448 wrote to memory of 1972	4448	JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe	93
PID 2696 wrote to memory of 1180	2696	sqfrlhsi.exe	98
PID 2696 wrote to memory of 1180	2696	sqfrlhsi.exe	98
PID 2696 wrote to memory of 1180	2696	sqfrlhsi.exe	98
PID 2696 wrote to memory of 1180	2696	sqfrlhsi.exe	98
PID 2696 wrote to memory of 1180	2696	sqfrlhsi.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ydqrsixq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sqfrlhsi.exe" C:\Windows\SysWOW64\ydqrsixq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ydqrsixq binPath= "C:\Windows\SysWOW64\ydqrsixq\sqfrlhsi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ydqrsixq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ydqrsixq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1104
- 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:1972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 1028
  2⤵
  - Program crash
  PID:8

C:\Windows\SysWOW64\ydqrsixq\sqfrlhsi.exe
C:\Windows\SysWOW64\ydqrsixq\sqfrlhsi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2c53d00cd76b2d17e1166f5476c7007b1dbb64abaaa81aa86d539dd233bab60.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2696 -s 560
  2⤵
  - Program crash
  PID:2640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4448 -ip 4448
1⤵
PID:4880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2696 -ip 2696
1⤵
PID:1040

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\sqfrlhsi.exe

Filesize
11.7MB

MD5
5161de9e5de07fb3119a115008acd14b

SHA1
f5a44011add757f3a7f6ee2aaace4540bd30512a

SHA256
2a1be49105c20e24e85313e1a1501ab4897530f9757bd6d17a459712a782a512

SHA512
527e16237be07810849dc5d366b2c67e67f2ea2020b923ab9549b237bfe42a345c641d268fb155f02d48ec1a0f0071b1de9084c3d602f483b3a887e9e109bf1f

Download Submit
memory/1180-14-0x0000000000210000-0x0000000000225000-memory.dmp

Filesize
84KB

Download
memory/1180-17-0x0000000000210000-0x0000000000225000-memory.dmp

Filesize
84KB

Download
memory/1180-16-0x0000000000210000-0x0000000000225000-memory.dmp

Filesize
84KB

Download
memory/2696-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2696-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2696-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2696-18-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4448-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4448-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4448-1-0x0000000000470000-0x0000000000570000-memory.dmp

Filesize
1024KB

Download
memory/4448-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4448-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4448-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads