tofsee | 39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634

General

Target

JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe
Size

235KB
MD5

090818f2a5159fe03a63ed4afcd42db5
SHA1

b1ccc63a1b2e7ba4866808cbd8e1238e4480b80f
SHA256

39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634
SHA512

3f15024d5c767335c1615155a16ac5a02a5d3c10da8ee3870098b77206c0864a43b55e26269a0620f169c8d7294c033a50728d49b895a3e1ccdbf648fabf3406
SSDEEP

3072:xeDkLrszgUJFBFqLDy1HeZjKyXR5udHrg5T6sfPmMahsZVggjcGkNIVqI/sxkgad:xeDkLyFBALjpSZI7PmMFb7ITsqXigad

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

mubrikych.top

oxxyfix.xyz

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
4908	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\plqvkrln\ImagePath = "C:\\Windows\\SysWOW64\\plqvkrln\\bbopkafq.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe

Deletes itself 1 IoCs

pid	Process
3056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1836	bbopkafq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 3056	1836	bbopkafq.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1936	sc.exe
4852	sc.exe
3840	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
1980	4932	WerFault.exe	81
4712	1836	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	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bbopkafq.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 4704	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	82
PID 4932 wrote to memory of 4704	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	82
PID 4932 wrote to memory of 4704	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	82
PID 4932 wrote to memory of 2228	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	84
PID 4932 wrote to memory of 2228	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	84
PID 4932 wrote to memory of 2228	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	84
PID 4932 wrote to memory of 4852	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	86
PID 4932 wrote to memory of 4852	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	86
PID 4932 wrote to memory of 4852	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	86
PID 4932 wrote to memory of 3840	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	88
PID 4932 wrote to memory of 3840	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	88
PID 4932 wrote to memory of 3840	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	88
PID 4932 wrote to memory of 1936	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	90
PID 4932 wrote to memory of 1936	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	90
PID 4932 wrote to memory of 1936	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	90
PID 4932 wrote to memory of 4908	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	93
PID 4932 wrote to memory of 4908	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	93
PID 4932 wrote to memory of 4908	4932	JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe	93
PID 1836 wrote to memory of 3056	1836	bbopkafq.exe	98
PID 1836 wrote to memory of 3056	1836	bbopkafq.exe	98
PID 1836 wrote to memory of 3056	1836	bbopkafq.exe	98
PID 1836 wrote to memory of 3056	1836	bbopkafq.exe	98
PID 1836 wrote to memory of 3056	1836	bbopkafq.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\plqvkrln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bbopkafq.exe" C:\Windows\SysWOW64\plqvkrln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create plqvkrln binPath= "C:\Windows\SysWOW64\plqvkrln\bbopkafq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description plqvkrln "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start plqvkrln
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1936
- 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:4908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 780
  2⤵
  - Program crash
  PID:1980

C:\Windows\SysWOW64\plqvkrln\bbopkafq.exe
C:\Windows\SysWOW64\plqvkrln\bbopkafq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39580e95f621d8722f944615508073c1172a1afabc1442865d8040a40ee74634.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 508
  2⤵
  - Program crash
  PID:4712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4932 -ip 4932
1⤵
PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1836 -ip 1836
1⤵
PID:5000

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\bbopkafq.exe

Filesize
14.4MB

MD5
e42d6672296f76e8cee35133332c090a

SHA1
5d03a3447f0c132f3c23dc3d61886f7b70fca0e4

SHA256
544522c19bdb7858b0c304f3f03852a814d6d7e0a93fc0f640cd9d9f752cace8

SHA512
d85960dcafe969f8f687737784aa06d17d30e38b7e37aac019390530e0c24d371fee829b3aa09039890de99d13438d497170af720faedd24ae7d143609dbf686

Download Submit
memory/1836-10-0x0000000000400000-0x000000000082C000-memory.dmp

Filesize
4.2MB

Download
memory/1836-11-0x0000000000400000-0x000000000082C000-memory.dmp

Filesize
4.2MB

Download
memory/1836-16-0x0000000000400000-0x000000000082C000-memory.dmp

Filesize
4.2MB

Download
memory/3056-12-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/3056-14-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/3056-15-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4932-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4932-1-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/4932-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4932-8-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/4932-7-0x00000000001C0000-0x00000000001CD000-memory.dmp

Filesize
52KB

Download
memory/4932-6-0x0000000000400000-0x000000000082C000-memory.dmp

Filesize
4.2MB

Download
memory/4932-0-0x00000000001C0000-0x00000000001CD000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads