tofsee | 9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819

General

Target

JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe
Size

299KB
MD5

e6000425f67565c7d4234f3d380b2504
SHA1

866fb85524643bfecb3c6682196d4f0ae90e3114
SHA256

9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819
SHA512

ee95aadc6808319fa9e4acca541da55c461de164c87280c2e3271a168fbd23bccaf457e81508bd51f3c3e932b261070f6a271b2cf1c3c77a4de484066e2a630e
SSDEEP

3072:d2QC1KyeOzjzX4Ud67OBKExAxWtrFmXz7UFAeO2qciZf3Ox1RYphOXSuuW35KiIV:dakOBKZXzIFwBZf3g1RkhOCU345oNC

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.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
3992	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\sxfhbwyk\ImagePath = "C:\\Windows\\SysWOW64\\sxfhbwyk\\ubfefmv.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe

Deletes itself 1 IoCs

pid	Process
2208	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2632	ubfefmv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2632 set thread context of 2208	2632	ubfefmv.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2028	sc.exe
2292	sc.exe
2284	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4252	5004	WerFault.exe	82
3820	2632	WerFault.exe	94

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_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ubfefmv.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 3564	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	83
PID 5004 wrote to memory of 3564	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	83
PID 5004 wrote to memory of 3564	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	83
PID 5004 wrote to memory of 4436	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	85
PID 5004 wrote to memory of 4436	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	85
PID 5004 wrote to memory of 4436	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	85
PID 5004 wrote to memory of 2292	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	87
PID 5004 wrote to memory of 2292	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	87
PID 5004 wrote to memory of 2292	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	87
PID 5004 wrote to memory of 2284	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	89
PID 5004 wrote to memory of 2284	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	89
PID 5004 wrote to memory of 2284	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	89
PID 5004 wrote to memory of 2028	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	92
PID 5004 wrote to memory of 2028	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	92
PID 5004 wrote to memory of 2028	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	92
PID 5004 wrote to memory of 3992	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	95
PID 5004 wrote to memory of 3992	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	95
PID 5004 wrote to memory of 3992	5004	JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe	95
PID 2632 wrote to memory of 2208	2632	ubfefmv.exe	101
PID 2632 wrote to memory of 2208	2632	ubfefmv.exe	101
PID 2632 wrote to memory of 2208	2632	ubfefmv.exe	101
PID 2632 wrote to memory of 2208	2632	ubfefmv.exe	101
PID 2632 wrote to memory of 2208	2632	ubfefmv.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sxfhbwyk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ubfefmv.exe" C:\Windows\SysWOW64\sxfhbwyk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sxfhbwyk binPath= "C:\Windows\SysWOW64\sxfhbwyk\ubfefmv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sxfhbwyk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sxfhbwyk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2028
- 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:3992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 800
  2⤵
  - Program crash
  PID:4252

C:\Windows\SysWOW64\sxfhbwyk\ubfefmv.exe
C:\Windows\SysWOW64\sxfhbwyk\ubfefmv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9674f8093e7a4372c9ac6220c77c7e8cf1c9f42c725ea9c20b9c21465a7b2819.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2632
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2632 -s 560
  2⤵
  - Program crash
  PID:3820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5004 -ip 5004
1⤵
PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2632 -ip 2632
1⤵
PID:2216

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\ubfefmv.exe

Filesize
10.7MB

MD5
a07b2decb007d9032f30360d4e7f4205

SHA1
a942f53ff6fbbc6d1687fa5e5f2df08a48eb514f

SHA256
24230294bf1c4c585598fef8e6ecce88a95f484a4db9e9fd47bc439c9dec94bc

SHA512
32d81de0bf383906eb2d38b860d079494f875f66e8277f1e2bcca04f8ba9d7b55c9ade63ad73950bebbf1cf1cadabbd501f8247b0c15f6916c4d2e705e500e0a

Download Submit
memory/2208-14-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/2208-17-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/2208-16-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/2632-13-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2632-12-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2632-11-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2632-19-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/5004-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5004-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/5004-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/5004-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/5004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5004-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads