tofsee | a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc

General

Target

JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe
Size

161KB
MD5

57369a2964bae1145d8e60e93cb03a09
SHA1

136acbf24badc0f85b19d262349a062d517a30d6
SHA256

a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc
SHA512

64e3bf8c255f959f7460a69f23372f5d37f4d8e31f5a097e58a11e415785cbaba97587d405b4ecd21c3b6dab88617f84b20ca2788c3dd6ca4bd15acaf7a8fd9a
SSDEEP

3072:4lNGUja6WGK67WLy7jMx5UI+lMMVUB6shv1sH:MGUdWGK6S7UkMVUB3

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
5080	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\sjwwordh\ImagePath = "C:\\Windows\\SysWOW64\\sjwwordh\\cvqcgvg.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	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe

Deletes itself 1 IoCs

pid	Process
840	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1068	cvqcgvg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1068 set thread context of 840	1068	cvqcgvg.exe	94

Launches sc.exe 3 IoCs

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

pid	Process
2840	sc.exe
4600	sc.exe
2432	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2604	1068	WerFault.exe	93
2480	1056	WerFault.exe	82

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.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	cvqcgvg.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 1824	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	83
PID 1056 wrote to memory of 1824	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	83
PID 1056 wrote to memory of 1824	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	83
PID 1056 wrote to memory of 1848	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	85
PID 1056 wrote to memory of 1848	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	85
PID 1056 wrote to memory of 1848	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	85
PID 1056 wrote to memory of 4600	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	87
PID 1056 wrote to memory of 4600	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	87
PID 1056 wrote to memory of 4600	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	87
PID 1056 wrote to memory of 2432	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	89
PID 1056 wrote to memory of 2432	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	89
PID 1056 wrote to memory of 2432	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	89
PID 1056 wrote to memory of 2840	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	91
PID 1056 wrote to memory of 2840	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	91
PID 1056 wrote to memory of 2840	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	91
PID 1068 wrote to memory of 840	1068	cvqcgvg.exe	94
PID 1068 wrote to memory of 840	1068	cvqcgvg.exe	94
PID 1068 wrote to memory of 840	1068	cvqcgvg.exe	94
PID 1068 wrote to memory of 840	1068	cvqcgvg.exe	94
PID 1068 wrote to memory of 840	1068	cvqcgvg.exe	94
PID 1056 wrote to memory of 5080	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	96
PID 1056 wrote to memory of 5080	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	96
PID 1056 wrote to memory of 5080	1056	JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sjwwordh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cvqcgvg.exe" C:\Windows\SysWOW64\sjwwordh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sjwwordh binPath= "C:\Windows\SysWOW64\sjwwordh\cvqcgvg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sjwwordh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sjwwordh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- 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:5080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1056 -s 664
  2⤵
  - Program crash
  PID:2480

C:\Windows\SysWOW64\sjwwordh\cvqcgvg.exe
C:\Windows\SysWOW64\sjwwordh\cvqcgvg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a8169b1cab58e46a0c1b4627474f2d9cf23b7050a5d3ac2b8704e619b67835fc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 508
  2⤵
  - Program crash
  PID:2604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1068 -ip 1068
1⤵
PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1056 -ip 1056
1⤵
PID:1900

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\cvqcgvg.exe

Filesize
10.5MB

MD5
5a3281d228e7bb60730149eac7b551d4

SHA1
9d8695360502ab4ed513c06b8a1dd1197344e0d7

SHA256
132b23215718f8977d777ae95a5e7cc47ae45a0a1e3b9d57864bc293c955b213

SHA512
dd1d2297834719f8722d84cc2f8ab6ba76be85d25dda837520e76aa2f8c18c1679e1d3984b7ba020a64afb389dfb5472f13b5456c449526a07c280cc04157a80

Download Submit
memory/840-9-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/840-21-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/840-12-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/840-20-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/840-19-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/1056-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1056-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1056-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/1056-16-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/1056-15-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1056-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1056-17-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1068-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1068-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1068-8-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1068-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads