tofsee | b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74

Analysis

max time kernel
148s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-12-2024 02:16

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General

Target

JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe
Size

257KB
MD5

bd8f74074139a4eebd38714fd34907ea
SHA1

513f813e25cd88d9fd40a10c5ec6360079e64c30
SHA256

b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74
SHA512

9e2708595c30e4a53b475db2448258091eccb8dd6dbcd078122d4680643cb123b5c6dfb024d60bac17d64fee914f6a103770fd83043476458d0c73d647f3b64b
SSDEEP

3072:uTjk+g7D/7ncnzNy6rVZE0pj9SpcvSyo7hs:uTjJ6/7ncA6hZE0pBSCF

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

parubey.info

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\taamvpzn = "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
2660	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\taamvpzn\ImagePath = "C:\\Windows\\SysWOW64\\taamvpzn\\zouojzxm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2648	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2908	zouojzxm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2908 set thread context of 2648	2908	zouojzxm.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2756	sc.exe
2768	sc.exe
2184	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

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.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	zouojzxm.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2140	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	30
PID 2980 wrote to memory of 2140	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	30
PID 2980 wrote to memory of 2140	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	30
PID 2980 wrote to memory of 2140	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	30
PID 2980 wrote to memory of 2884	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	32
PID 2980 wrote to memory of 2884	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	32
PID 2980 wrote to memory of 2884	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	32
PID 2980 wrote to memory of 2884	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	32
PID 2980 wrote to memory of 2756	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	34
PID 2980 wrote to memory of 2756	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	34
PID 2980 wrote to memory of 2756	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	34
PID 2980 wrote to memory of 2756	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	34
PID 2980 wrote to memory of 2768	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	36
PID 2980 wrote to memory of 2768	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	36
PID 2980 wrote to memory of 2768	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	36
PID 2980 wrote to memory of 2768	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	36
PID 2980 wrote to memory of 2184	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	38
PID 2980 wrote to memory of 2184	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	38
PID 2980 wrote to memory of 2184	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	38
PID 2980 wrote to memory of 2184	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	38
PID 2980 wrote to memory of 2660	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	41
PID 2980 wrote to memory of 2660	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	41
PID 2980 wrote to memory of 2660	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	41
PID 2980 wrote to memory of 2660	2980	JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe	41
PID 2908 wrote to memory of 2648	2908	zouojzxm.exe	43
PID 2908 wrote to memory of 2648	2908	zouojzxm.exe	43
PID 2908 wrote to memory of 2648	2908	zouojzxm.exe	43
PID 2908 wrote to memory of 2648	2908	zouojzxm.exe	43
PID 2908 wrote to memory of 2648	2908	zouojzxm.exe	43
PID 2908 wrote to memory of 2648	2908	zouojzxm.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\taamvpzn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zouojzxm.exe" C:\Windows\SysWOW64\taamvpzn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create taamvpzn binPath= "C:\Windows\SysWOW64\taamvpzn\zouojzxm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description taamvpzn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start taamvpzn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- 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:2660

C:\Windows\SysWOW64\taamvpzn\zouojzxm.exe
C:\Windows\SysWOW64\taamvpzn\zouojzxm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6b04c889dd842c848cb86f0b01feb26900193ecc5aa863e699e26a186326a74.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2908
- 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:2648

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\zouojzxm.exe

Filesize
10.1MB

MD5
036e0e5eb5a6e21fd5e094aff7423619

SHA1
ab1f869a2218af11b6281c825d65d76775ba2363

SHA256
b0d13cfc32aa44d9c571967cb3094e8940655b2b7510b62ea68fd60d9bb0a3a1

SHA512
3565cffc560d6d8ebfca810c598bc814084a9547cd571c69776065692bfd774c9b2b6dd6682ac634aed96cc88e5ee18af811d0cda42071fcd9a87138ff50fa71

Download Submit
memory/2648-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2908-16-0x0000000000400000-0x0000000002B76000-memory.dmp

Filesize
39.5MB

Download
memory/2980-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2980-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2980-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2980-6-0x0000000000400000-0x0000000002B76000-memory.dmp

Filesize
39.5MB

Download
memory/2980-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2980-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2980-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads