tofsee | 1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417

General

Target

JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe
Size

305KB
MD5

338ab2e152c81451b60b32cd347cc0f3
SHA1

54667f010d3e818f5b66f391999d3c0a4b11b8ab
SHA256

1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417
SHA512

7a47e567101158af61caceba109f51db6973129c37b2311b7766990dc4061c03e8597cf3cb9342fbe86601bbef68de92a7b47dcf2876bf2edccd5110d866f9d6
SSDEEP

6144:0PgNS5Ym+loYI38ss45vSUmNe7niKz/LOvk:3NS5Ym+lu8745aUji

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
3616	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\ebqbdirr\ImagePath = "C:\\Windows\\SysWOW64\\ebqbdirr\\yojvpbfx.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe

Deletes itself 1 IoCs

pid	Process
1296	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
116	yojvpbfx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 116 set thread context of 1296	116	yojvpbfx.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1468	sc.exe
2652	sc.exe
880	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
2680	2396	WerFault.exe	82
2020	116	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yojvpbfx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 212	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	83
PID 2396 wrote to memory of 212	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	83
PID 2396 wrote to memory of 212	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	83
PID 2396 wrote to memory of 2352	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	85
PID 2396 wrote to memory of 2352	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	85
PID 2396 wrote to memory of 2352	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	85
PID 2396 wrote to memory of 880	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	87
PID 2396 wrote to memory of 880	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	87
PID 2396 wrote to memory of 880	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	87
PID 2396 wrote to memory of 1468	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	89
PID 2396 wrote to memory of 1468	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	89
PID 2396 wrote to memory of 1468	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	89
PID 2396 wrote to memory of 2652	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	92
PID 2396 wrote to memory of 2652	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	92
PID 2396 wrote to memory of 2652	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	92
PID 2396 wrote to memory of 3616	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	95
PID 2396 wrote to memory of 3616	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	95
PID 2396 wrote to memory of 3616	2396	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	95
PID 116 wrote to memory of 1296	116	yojvpbfx.exe	100
PID 116 wrote to memory of 1296	116	yojvpbfx.exe	100
PID 116 wrote to memory of 1296	116	yojvpbfx.exe	100
PID 116 wrote to memory of 1296	116	yojvpbfx.exe	100
PID 116 wrote to memory of 1296	116	yojvpbfx.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ebqbdirr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:212
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yojvpbfx.exe" C:\Windows\SysWOW64\ebqbdirr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ebqbdirr binPath= "C:\Windows\SysWOW64\ebqbdirr\yojvpbfx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ebqbdirr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ebqbdirr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2652
- 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:3616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 1036
  2⤵
  - Program crash
  PID:2680

C:\Windows\SysWOW64\ebqbdirr\yojvpbfx.exe
C:\Windows\SysWOW64\ebqbdirr\yojvpbfx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:116
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 512
  2⤵
  - Program crash
  PID:2020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2396 -ip 2396
1⤵
PID:5096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 116 -ip 116
1⤵
PID:3156

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\yojvpbfx.exe

Filesize
11.0MB

MD5
33f7ac2846dd1da769cad3c10e56e7d9

SHA1
5e4648493a80f8a9070fa8edb76f672ad06ea7ee

SHA256
86b6381294593e386a3d8ac70ff955838ce1fa452f3b9ebe50462e29b7f1d83c

SHA512
c8f59b491613e2fc249e479920a70b3a03d538cb1e025af1c489e5e19c4b9d91bdcb2a2421f65ab41079d90dc7a5e919c3e81c16ac6d6033aad4e5323839b3ee

Download Submit
memory/116-10-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/1296-8-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download
memory/1296-14-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download
memory/1296-15-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download
memory/2396-1-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

Filesize
1024KB

Download
memory/2396-2-0x0000000002BE0000-0x0000000002BF3000-memory.dmp

Filesize
76KB

Download
memory/2396-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2396-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2396-12-0x0000000002BE0000-0x0000000002BF3000-memory.dmp

Filesize
76KB

Download
memory/2396-11-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads