tofsee | ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec

General

Target

JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe
Size

272KB
MD5

83b5776099c94810fb6f10211e135228
SHA1

39847c224f60ab065f7811a9e358558162c83a20
SHA256

ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec
SHA512

9a7adbfb0ffb6654d05a2f38b2daf0b0e5a2b1840205c71396058fb6ace9151c880b9e491ba931d7ce8c8364fa266ee13a91595b0bfb2756ad111f73c6eae492
SSDEEP

6144:5HB/PtD4M5G0tZwk4NF/MIPNVsuzbgwu6L7ITsqSigaTwVf:X/Pl4MU+V4DZVsunnn7s

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
1396	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\syhcgjkg\ImagePath = "C:\\Windows\\SysWOW64\\syhcgjkg\\npjyuqmd.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_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe

Deletes itself 1 IoCs

pid	Process
3604	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3676	npjyuqmd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3676 set thread context of 3604	3676	npjyuqmd.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
2128	sc.exe
4208	sc.exe
1564	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
4276	4016	WerFault.exe	81
3612	3676	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	npjyuqmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 4644	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	82
PID 4016 wrote to memory of 4644	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	82
PID 4016 wrote to memory of 4644	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	82
PID 4016 wrote to memory of 3408	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	84
PID 4016 wrote to memory of 3408	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	84
PID 4016 wrote to memory of 3408	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	84
PID 4016 wrote to memory of 4208	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	86
PID 4016 wrote to memory of 4208	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	86
PID 4016 wrote to memory of 4208	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	86
PID 4016 wrote to memory of 1564	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	88
PID 4016 wrote to memory of 1564	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	88
PID 4016 wrote to memory of 1564	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	88
PID 4016 wrote to memory of 2128	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	90
PID 4016 wrote to memory of 2128	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	90
PID 4016 wrote to memory of 2128	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	90
PID 4016 wrote to memory of 1396	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	93
PID 4016 wrote to memory of 1396	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	93
PID 4016 wrote to memory of 1396	4016	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	93
PID 3676 wrote to memory of 3604	3676	npjyuqmd.exe	95
PID 3676 wrote to memory of 3604	3676	npjyuqmd.exe	95
PID 3676 wrote to memory of 3604	3676	npjyuqmd.exe	95
PID 3676 wrote to memory of 3604	3676	npjyuqmd.exe	95
PID 3676 wrote to memory of 3604	3676	npjyuqmd.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\syhcgjkg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\npjyuqmd.exe" C:\Windows\SysWOW64\syhcgjkg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create syhcgjkg binPath= "C:\Windows\SysWOW64\syhcgjkg\npjyuqmd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description syhcgjkg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start syhcgjkg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2128
- 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:1396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4016 -s 792
  2⤵
  - Program crash
  PID:4276

C:\Windows\SysWOW64\syhcgjkg\npjyuqmd.exe
C:\Windows\SysWOW64\syhcgjkg\npjyuqmd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3676
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 516
  2⤵
  - Program crash
  PID:3612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4016 -ip 4016
1⤵
PID:3548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3676 -ip 3676
1⤵
PID:3240

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\npjyuqmd.exe

Filesize
14.4MB

MD5
ee4f1bf2c9c2f8350a382e02707821ba

SHA1
0ac570af1535848b3c472238819b29777d5d7e46

SHA256
fad5d0bc668726f3eb968b97d0ba2ed57410e2567be3f222a1360b92f598c027

SHA512
097c106ef210ae5c3b86935e951ac3c565994eb43962cdf90ae23d5a75624e37d62957a404c04adfe6275ede7b608b6d243e517ef5d900cafa59d922d90cbb7b

Download Submit
memory/3604-8-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/3604-20-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/3604-19-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/3604-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/3676-16-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3676-6-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3676-7-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4016-12-0x00000000006F0000-0x00000000006FD000-memory.dmp

Filesize
52KB

Download
memory/4016-13-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/4016-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4016-15-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4016-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4016-0-0x00000000006F0000-0x00000000006FD000-memory.dmp

Filesize
52KB

Download
memory/4016-1-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads