tofsee | 8190306001ddb5a81596b49253258638c1ff2040cb62de7515025b1446f46be9

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 09:50

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General

Target

82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
Size

11.1MB
MD5

82a6162642e7011415a35b89c52dcd9b
SHA1

aba7845a594b2363f131e03d8d81060031c6fbb2
SHA256

8190306001ddb5a81596b49253258638c1ff2040cb62de7515025b1446f46be9
SHA512

c4cde32813dff4592733edb06af94575b514e05a7280c566912b7dba1380956d09a7a8d78ce6d69a9f10facb09bab1a5bf00da1128f4d21fe1fd629929f8dfd1
SSDEEP

12288:6ffRLpsONV6+uOaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaf:6f5fNV6+

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.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

Processes:

netsh.exe

pid process

1776 netsh.exe

pid	process
1776	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\dtamqaos\ImagePath = "C:\\Windows\\SysWOW64\\dtamqaos\\kgyyvkjx.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

Processes:

82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1408 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kgyyvkjx.exe

pid process

4784 kgyyvkjx.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kgyyvkjx.exe

description pid process target process

PID 4784 set thread context of 1408 4784 kgyyvkjx.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

3968 sc.exe
316 sc.exe
2848 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1408	svchost.exe

pid	process
4784	kgyyvkjx.exe

description	pid	process	target process
PID 4784 set thread context of 1408	4784	kgyyvkjx.exe	svchost.exe

pid	process
3968	sc.exe
316	sc.exe
2848	sc.exe

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

Processes:

netsh.exe

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 19 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
2612	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
556	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
2608	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
4756	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
1248	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
3448	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
4384	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
1064	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
3416	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
3948	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
3652	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
1860	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
1932	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
3848	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
5092	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
5068	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
4536	4704	WerFault.exe	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
3552	4784	WerFault.exe	kgyyvkjx.exe
4768	4784	WerFault.exe	kgyyvkjx.exe

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

Processes:

82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.execmd.execmd.exesc.exesvchost.exesc.exesc.exekgyyvkjx.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	82a6162642e7011415a35b89c52dcd9b_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	sc.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kgyyvkjx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exekgyyvkjx.exe

description	pid	process	target process
PID 4704 wrote to memory of 592	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	cmd.exe
PID 4704 wrote to memory of 592	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	cmd.exe
PID 4704 wrote to memory of 592	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	cmd.exe
PID 4704 wrote to memory of 2380	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	cmd.exe
PID 4704 wrote to memory of 2380	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	cmd.exe
PID 4704 wrote to memory of 2380	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	cmd.exe
PID 4704 wrote to memory of 3968	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 3968	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 3968	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 316	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 316	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 316	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 2848	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 2848	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 2848	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	sc.exe
PID 4704 wrote to memory of 1776	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	netsh.exe
PID 4704 wrote to memory of 1776	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	netsh.exe
PID 4704 wrote to memory of 1776	4704	82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe	netsh.exe
PID 4784 wrote to memory of 1408	4784	kgyyvkjx.exe	svchost.exe
PID 4784 wrote to memory of 1408	4784	kgyyvkjx.exe	svchost.exe
PID 4784 wrote to memory of 1408	4784	kgyyvkjx.exe	svchost.exe
PID 4784 wrote to memory of 1408	4784	kgyyvkjx.exe	svchost.exe
PID 4784 wrote to memory of 1408	4784	kgyyvkjx.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 600
  2⤵
  - Program crash
  PID:2612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 684
  2⤵
  - Program crash
  PID:556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 788
  2⤵
  - Program crash
  PID:2608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 948
  2⤵
  - Program crash
  PID:4756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 964
  2⤵
  - Program crash
  PID:1248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 976
  2⤵
  - Program crash
  PID:3448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1008
  2⤵
  - Program crash
  PID:4384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dtamqaos\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 892
  2⤵
  - Program crash
  PID:1064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 604
  2⤵
  - Program crash
  PID:3416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kgyyvkjx.exe" C:\Windows\SysWOW64\dtamqaos\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1208
  2⤵
  - Program crash
  PID:3948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 592
  2⤵
  - Program crash
  PID:3652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dtamqaos binPath= "C:\Windows\SysWOW64\dtamqaos\kgyyvkjx.exe /d\"C:\Users\Admin\AppData\Local\Temp\82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1240
  2⤵
  - Program crash
  PID:1860
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1216
  2⤵
  - Program crash
  PID:1932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dtamqaos "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 732
  2⤵
  - Program crash
  PID:3848
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 656
  2⤵
  - Program crash
  PID:5092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dtamqaos
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 672
  2⤵
  - Program crash
  PID:5068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 652
  2⤵
  - Program crash
  PID:4536
- 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:1776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4704 -ip 4704
1⤵
PID:1992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4704 -ip 4704
1⤵
PID:4848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4704 -ip 4704
1⤵
PID:2184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4704 -ip 4704
1⤵
PID:1508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4704 -ip 4704
1⤵
PID:1132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4704 -ip 4704
1⤵
PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4704 -ip 4704
1⤵
PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4704 -ip 4704
1⤵
PID:3116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4704 -ip 4704
1⤵
PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4704 -ip 4704
1⤵
PID:4884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4704 -ip 4704
1⤵
PID:1484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4704 -ip 4704
1⤵
PID:3276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4704 -ip 4704
1⤵
PID:1988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4704 -ip 4704
1⤵
PID:2440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4704 -ip 4704
1⤵
PID:3960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4704 -ip 4704
1⤵
PID:4624

C:\Windows\SysWOW64\dtamqaos\kgyyvkjx.exe
C:\Windows\SysWOW64\dtamqaos\kgyyvkjx.exe /d"C:\Users\Admin\AppData\Local\Temp\82a6162642e7011415a35b89c52dcd9b_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 540
  2⤵
  - Program crash
  PID:3552
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 548
  2⤵
  - Program crash
  PID:4768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4704 -ip 4704
1⤵
PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4784 -ip 4784
1⤵
PID:1212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4784 -ip 4784
1⤵
PID:4564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\kgyyvkjx.exe

Filesize
12.9MB

MD5
8794df158e13529c2547a43470976aca

SHA1
d542fa19bd2a9f9fb1cc19ee6232e29b1c0dbd2c

SHA256
ed202d9f509bed4e307c5b61ed0fb90311dcfacad595efec0c10405c7803c831

SHA512
ff248cfdb9ecd201bd16bf222dc907e9c48ffd8ac730b8f09fd55ab12c9bd028c8dc9c5e2345d695a20d933881d36bfb23b2874c16c7fc334d64f55d8631700d

Download Submit
memory/1408-11-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/1408-13-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/1408-14-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/4704-1-0x0000000003630000-0x0000000003730000-memory.dmp

Filesize
1024KB

Download
memory/4704-2-0x00000000035C0000-0x00000000035D3000-memory.dmp

Filesize
76KB

Download
memory/4704-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4704-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4704-8-0x00000000035C0000-0x00000000035D3000-memory.dmp

Filesize
76KB

Download
memory/4704-7-0x0000000000400000-0x000000000335A000-memory.dmp

Filesize
47.4MB

Download
memory/4784-15-0x0000000000400000-0x000000000335A000-memory.dmp

Filesize
47.4MB

Download