tofsee | 90399b9745d09290d97eb0ed45d5e518e79a4e31f8133502317fa7ce3b456bfb

General

Target

f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe
Size

10.7MB
MD5

f8f54aaae74e0086b1fa46b5a84db05c
SHA1

6cf69b369b4d509cf28bba17f2d5c301d53cb234
SHA256

90399b9745d09290d97eb0ed45d5e518e79a4e31f8133502317fa7ce3b456bfb
SHA512

37d14cf05f1d0603469b4c3cecb4517ec38bf5d22da6eb743f6d832b92ae62637f9231a2f1e01cf999ba50e3a5d858b59958e5be30f7e4d7ce734ea7ac24d980
SSDEEP

6144:0POE0xjG9DJs6XBy+UP29MX6TERERERERERERERERERERERERERERERERERERERV:x1xS9RdUe9MX6

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan upx

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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

pid	Process
2528	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\qjzhepbd\ImagePath = "C:\\Windows\\SysWOW64\\qjzhepbd\\ctpwnmqu.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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2508	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3032	ctpwnmqu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 2508	3032	ctpwnmqu.exe	95

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1748-0-0x0000000000400000-0x0000000004C5B000-memory.dmp	upx
behavioral2/files/0x00090000000233d4-5.dat	upx

Launches sc.exe 3 IoCs

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

pid	Process
5092	sc.exe
4880	sc.exe
1648	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
4916	1748	WerFault.exe	81
1888	3032	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	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ctpwnmqu.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 2236	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	82
PID 1748 wrote to memory of 2236	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	82
PID 1748 wrote to memory of 2236	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	82
PID 1748 wrote to memory of 4792	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	84
PID 1748 wrote to memory of 4792	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	84
PID 1748 wrote to memory of 4792	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	84
PID 1748 wrote to memory of 5092	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	86
PID 1748 wrote to memory of 5092	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	86
PID 1748 wrote to memory of 5092	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	86
PID 1748 wrote to memory of 4880	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	88
PID 1748 wrote to memory of 4880	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	88
PID 1748 wrote to memory of 4880	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	88
PID 1748 wrote to memory of 1648	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	90
PID 1748 wrote to memory of 1648	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	90
PID 1748 wrote to memory of 1648	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	90
PID 1748 wrote to memory of 2528	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	93
PID 1748 wrote to memory of 2528	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	93
PID 1748 wrote to memory of 2528	1748	f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe	93
PID 3032 wrote to memory of 2508	3032	ctpwnmqu.exe	95
PID 3032 wrote to memory of 2508	3032	ctpwnmqu.exe	95
PID 3032 wrote to memory of 2508	3032	ctpwnmqu.exe	95
PID 3032 wrote to memory of 2508	3032	ctpwnmqu.exe	95
PID 3032 wrote to memory of 2508	3032	ctpwnmqu.exe	95

C:\Users\Admin\AppData\Local\Temp\f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qjzhepbd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ctpwnmqu.exe" C:\Windows\SysWOW64\qjzhepbd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qjzhepbd binPath= "C:\Windows\SysWOW64\qjzhepbd\ctpwnmqu.exe /d\"C:\Users\Admin\AppData\Local\Temp\f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qjzhepbd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qjzhepbd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1648
- 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:2528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1748 -s 1040
  2⤵
  - Program crash
  PID:4916

C:\Windows\SysWOW64\qjzhepbd\ctpwnmqu.exe
C:\Windows\SysWOW64\qjzhepbd\ctpwnmqu.exe /d"C:\Users\Admin\AppData\Local\Temp\f8f54aaae74e0086b1fa46b5a84db05c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 552
  2⤵
  - Program crash
  PID:1888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1748 -ip 1748
1⤵
PID:1400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3032 -ip 3032
1⤵
PID:2972

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\ctpwnmqu.exe

Filesize
13.8MB

MD5
9dd07609f744871274f6681ef57b3562

SHA1
f84907720ac1b04d410c80ea04fbf83dd6b533ba

SHA256
e51c73619cc7f91ca3b8e1aa1c216fbcf736fc238d2def94e3827a790c895a0d

SHA512
769eedba47ea26caabd125c1569278edc4c0edc02f5e2a9313edd113d4c980380923b37c2f95751ac41af6376d9efa4632ae481abe8f2e23833d6976ca741bc0

Download Submit
memory/1748-0-0x0000000000400000-0x0000000004C5B000-memory.dmp

Filesize
72.4MB

Download
memory/1748-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1748-2-0x00000000068B0000-0x00000000068C3000-memory.dmp

Filesize
76KB

Download
memory/1748-4-0x0000000000400000-0x0000000004C5B000-memory.dmp

Filesize
72.4MB

Download
memory/1748-9-0x0000000000400000-0x0000000004C5B000-memory.dmp

Filesize
72.4MB

Download
memory/1748-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2508-7-0x0000000001080000-0x0000000001095000-memory.dmp

Filesize
84KB

Download
memory/2508-13-0x0000000001080000-0x0000000001095000-memory.dmp

Filesize
84KB

Download
memory/2508-14-0x0000000001080000-0x0000000001095000-memory.dmp

Filesize
84KB

Download
memory/3032-12-0x0000000000400000-0x0000000004C5B000-memory.dmp

Filesize
72.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads