tofsee | abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 17:41

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General

Target

JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe
Size

337KB
MD5

d6776b98162419c267c5c4f8bf95ef8b
SHA1

cad3f3d2153d960148239f9ce9bebbb1d364a391
SHA256

abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a
SHA512

1ed3405323520fc4a83339e7df35fa708c26a9bd9c8684864ce95317755d61ad7420b01c94802b4bdda42addb0bfafcaa5fa1738cb735ba934c4e330ccd43789
SSDEEP

6144:SCfwTAbCJYL0eE0BWN3RnzWwXy0bnQjEL81Nrv:SCfoAV0eDBq3RnzWwXyhZX

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\ictlbzff = "0"	svchost.exe

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
1940	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\ictlbzff\ImagePath = "C:\\Windows\\SysWOW64\\ictlbzff\\zbvkgcyp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2260	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	zbvkgcyp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 2260	2868	zbvkgcyp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2864	sc.exe
2988	sc.exe
2896	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

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zbvkgcyp.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	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 1880	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	30
PID 2188 wrote to memory of 1880	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	30
PID 2188 wrote to memory of 1880	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	30
PID 2188 wrote to memory of 1880	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	30
PID 2188 wrote to memory of 2736	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	32
PID 2188 wrote to memory of 2736	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	32
PID 2188 wrote to memory of 2736	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	32
PID 2188 wrote to memory of 2736	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	32
PID 2188 wrote to memory of 2896	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	34
PID 2188 wrote to memory of 2896	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	34
PID 2188 wrote to memory of 2896	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	34
PID 2188 wrote to memory of 2896	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	34
PID 2188 wrote to memory of 2864	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	36
PID 2188 wrote to memory of 2864	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	36
PID 2188 wrote to memory of 2864	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	36
PID 2188 wrote to memory of 2864	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	36
PID 2188 wrote to memory of 2988	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	38
PID 2188 wrote to memory of 2988	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	38
PID 2188 wrote to memory of 2988	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	38
PID 2188 wrote to memory of 2988	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	38
PID 2188 wrote to memory of 1940	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	41
PID 2188 wrote to memory of 1940	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	41
PID 2188 wrote to memory of 1940	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	41
PID 2188 wrote to memory of 1940	2188	JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe	41
PID 2868 wrote to memory of 2260	2868	zbvkgcyp.exe	43
PID 2868 wrote to memory of 2260	2868	zbvkgcyp.exe	43
PID 2868 wrote to memory of 2260	2868	zbvkgcyp.exe	43
PID 2868 wrote to memory of 2260	2868	zbvkgcyp.exe	43
PID 2868 wrote to memory of 2260	2868	zbvkgcyp.exe	43
PID 2868 wrote to memory of 2260	2868	zbvkgcyp.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ictlbzff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zbvkgcyp.exe" C:\Windows\SysWOW64\ictlbzff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ictlbzff binPath= "C:\Windows\SysWOW64\ictlbzff\zbvkgcyp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ictlbzff "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ictlbzff
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2988
- 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:1940

C:\Windows\SysWOW64\ictlbzff\zbvkgcyp.exe
C:\Windows\SysWOW64\ictlbzff\zbvkgcyp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf95487064c4fb6b6c0e05e99a9dd70eccc3bb16d83942f43327c077d02090a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2260

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

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.1MB

MD5
b2c80edcb6aba0dc3ab4e9a653e04d30

SHA1
48974126430b96ff7075057841eee0580c9530dd

SHA256
c2387f2e322c64c06c2df7d78a28f07bcf0cc05b839f9f084a6d5447702aacb2

SHA512
c0cb28234452bfa54e0b5bd2531c94cf3853f942839cf7f029bcd0458e52f7efd4f0fe5f4f77ca443c67898c2daddd1783f84e2a2e9ee44da11112e6b68b02ff

Download Submit
memory/2188-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2188-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2188-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2188-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2188-9-0x0000000000A80000-0x0000000000B80000-memory.dmp

Filesize
1024KB

Download
memory/2188-1-0x0000000000A80000-0x0000000000B80000-memory.dmp

Filesize
1024KB

Download
memory/2188-7-0x0000000000400000-0x00000000008F8000-memory.dmp

Filesize
5.0MB

Download
memory/2260-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2260-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2260-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2260-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2260-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-18-0x0000000000400000-0x00000000008F8000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads