tofsee | 8474c154590f91174503b358198b2e29ded1f84dba0b959888c52c650539a091

General

Target

81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe
Size

10.0MB
MD5

81787095cda3a4cc5a550e14b1ba39e2
SHA1

8757a738ab8b2c72854aa1e6b7293466d1faf04e
SHA256

8474c154590f91174503b358198b2e29ded1f84dba0b959888c52c650539a091
SHA512

2d54a2ee159a1066cee35f1927c58df87ced67822bd9e98ad741e802c714f6df9247295f3af3b5e5c4631eccf4124f07f4e852809e48ea5a7ed3cc978f170f9a
SSDEEP

24576:mMOfbSPNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNZ:O

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
1784	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\rrapgwue\ImagePath = "C:\\Windows\\SysWOW64\\rrapgwue\\pbichnai.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
5116	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
428	pbichnai.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 428 set thread context of 5116	428	pbichnai.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
1540	sc.exe
2716	sc.exe
1592	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
4488	4624	WerFault.exe	83
1712	428	WerFault.exe	99

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	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	pbichnai.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 4116	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	87
PID 4624 wrote to memory of 4116	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	87
PID 4624 wrote to memory of 4116	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	87
PID 4624 wrote to memory of 3068	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	89
PID 4624 wrote to memory of 3068	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	89
PID 4624 wrote to memory of 3068	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	89
PID 4624 wrote to memory of 1540	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	91
PID 4624 wrote to memory of 1540	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	91
PID 4624 wrote to memory of 1540	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	91
PID 4624 wrote to memory of 2716	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	93
PID 4624 wrote to memory of 2716	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	93
PID 4624 wrote to memory of 2716	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	93
PID 4624 wrote to memory of 1592	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	97
PID 4624 wrote to memory of 1592	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	97
PID 4624 wrote to memory of 1592	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	97
PID 4624 wrote to memory of 1784	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	100
PID 4624 wrote to memory of 1784	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	100
PID 4624 wrote to memory of 1784	4624	81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe	100
PID 428 wrote to memory of 5116	428	pbichnai.exe	106
PID 428 wrote to memory of 5116	428	pbichnai.exe	106
PID 428 wrote to memory of 5116	428	pbichnai.exe	106
PID 428 wrote to memory of 5116	428	pbichnai.exe	106
PID 428 wrote to memory of 5116	428	pbichnai.exe	106

C:\Users\Admin\AppData\Local\Temp\81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rrapgwue\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pbichnai.exe" C:\Windows\SysWOW64\rrapgwue\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rrapgwue binPath= "C:\Windows\SysWOW64\rrapgwue\pbichnai.exe /d\"C:\Users\Admin\AppData\Local\Temp\81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rrapgwue "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rrapgwue
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1592
- 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:1784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4624 -s 1048
  2⤵
  - Program crash
  PID:4488

C:\Windows\SysWOW64\rrapgwue\pbichnai.exe
C:\Windows\SysWOW64\rrapgwue\pbichnai.exe /d"C:\Users\Admin\AppData\Local\Temp\81787095cda3a4cc5a550e14b1ba39e2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:428
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 516
  2⤵
  - Program crash
  PID:1712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4624 -ip 4624
1⤵
PID:1632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 428 -ip 428
1⤵
PID:316

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\pbichnai.exe

Filesize
11.3MB

MD5
345c1578978b621fcaf1f7311ee81279

SHA1
4a8039185f173b19c510e1e0d19199a78896c5fe

SHA256
8d05a823b23f82666a94170b0cce0b6e60262dcf5ebdbc82d172b0741aef98e7

SHA512
782a82d5bbee0f619f9937df0627e195a7358b8135991171a83a98348a85245491fc00ca670561fe26652b86ac91411da927174f34ac0d704e4ad280fbb6c745

Download Submit
memory/428-15-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/4624-2-0x0000000002BC0000-0x0000000002BD3000-memory.dmp

Filesize
76KB

Download
memory/4624-1-0x0000000002D30000-0x0000000002E30000-memory.dmp

Filesize
1024KB

Download
memory/4624-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4624-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4624-9-0x0000000002BC0000-0x0000000002BD3000-memory.dmp

Filesize
76KB

Download
memory/4624-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/5116-11-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/5116-13-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/5116-14-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads