tofsee | 181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2024, 15:18

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General

Target
0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe
Size 12.1MB
Sample240328-sp4rjsad45
SHA256 181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935
MD5 0906ff34f48334d4563ca2df39b3cef7
SHA1 289a0a4287b6e42e680a9b7efa0585fd97708f2e
SHA512 41545edf3fc63015f8bf2d094de7c17688889fbf4956fadd0b2447da2a870967606ad06971b3db4f28de7e8c777a1dcfec67bb8a99454d1598f1a42bb20580f6
SSDEEP 196608:gXPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP/:g
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru
refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5036	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\ccjoduys\ImagePath = "C:\\Windows\\SysWOW64\\ccjoduys\\kpldbeq.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4900	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4040	kpldbeq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4040 set thread context of 4900	4040	kpldbeq.exe	111

Launches sc.exe 3 IoCs

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

pid	Process
4088	sc.exe
3528	sc.exe
3532	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1920	1204	WerFault.exe	92
4624	4040	WerFault.exe	105

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 4288	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	95
PID 1204 wrote to memory of 4288	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	95
PID 1204 wrote to memory of 4288	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	95
PID 1204 wrote to memory of 1720	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	97
PID 1204 wrote to memory of 1720	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	97
PID 1204 wrote to memory of 1720	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	97
PID 1204 wrote to memory of 4088	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	99
PID 1204 wrote to memory of 4088	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	99
PID 1204 wrote to memory of 4088	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	99
PID 1204 wrote to memory of 3528	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	101
PID 1204 wrote to memory of 3528	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	101
PID 1204 wrote to memory of 3528	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	101
PID 1204 wrote to memory of 3532	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	103
PID 1204 wrote to memory of 3532	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	103
PID 1204 wrote to memory of 3532	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	103
PID 1204 wrote to memory of 5036	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	106
PID 1204 wrote to memory of 5036	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	106
PID 1204 wrote to memory of 5036	1204	0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe	106
PID 4040 wrote to memory of 4900	4040	kpldbeq.exe	111
PID 4040 wrote to memory of 4900	4040	kpldbeq.exe	111
PID 4040 wrote to memory of 4900	4040	kpldbeq.exe	111
PID 4040 wrote to memory of 4900	4040	kpldbeq.exe	111
PID 4040 wrote to memory of 4900	4040	kpldbeq.exe	111

C:\Users\Admin\AppData\Local\Temp\0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ccjoduys\
  2⤵
  PID:4288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kpldbeq.exe" C:\Windows\SysWOW64\ccjoduys\
  2⤵
  PID:1720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ccjoduys binPath= "C:\Windows\SysWOW64\ccjoduys\kpldbeq.exe /d\"C:\Users\Admin\AppData\Local\Temp\0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:4088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ccjoduys "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:3528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ccjoduys
  2⤵
  - Launches sc.exe
  PID:3532
- 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
  PID:5036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 1036
  2⤵
  - Program crash
  PID:1920

C:\Windows\SysWOW64\ccjoduys\kpldbeq.exe
C:\Windows\SysWOW64\ccjoduys\kpldbeq.exe /d"C:\Users\Admin\AppData\Local\Temp\0906ff34f48334d4563ca2df39b3cef7_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4040
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:4900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 508
  2⤵
  - Program crash
  PID:4624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1204 -ip 1204
1⤵
PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4040 -ip 4040
1⤵
PID:3816

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1412 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
1⤵
PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

kpldbeq.exe

Path C:\Users\Admin\AppData\Local\Temp\kpldbeq.exe
Size 11.4MB
SHA256 7fb807476720d98d4dccc302f0560aa50397c3482a7ae086cf360879daa09e54
MD5 579f279631c137605597f5e4d6a2d684
SHA1 5d3c5f7422a476f08ab612ada34459fcc1966c13
SHA512 9fde443bb710eaaffd68adcbdb93dc29c9185cbd475772435fe86c76d2ef5fca4c8fb7d6fe847162ad4c902e93b2c66706ff600ddf0b9435299e6b4435cc04f0
SSDEEP 196608:wXPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPH:w
MD5 SHA1 SHA512 SSDEEP

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memory/1204-10-0x00000000001C0000-0x00000000001D3000-memory.dmp

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memory/1204-3-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/1204-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

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memory/1204-6-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/1204-9-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/1204-1-0x0000000000B10000-0x0000000000C10000-memory.dmp

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memory/4040-11-0x0000000000920000-0x0000000000A20000-memory.dmp

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memory/4040-13-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/4040-17-0x0000000000400000-0x0000000000871000-memory.dmp

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memory/4900-12-0x0000000000D10000-0x0000000000D25000-memory.dmp

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memory/4900-16-0x0000000000D10000-0x0000000000D25000-memory.dmp

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memory/4900-18-0x0000000000D10000-0x0000000000D25000-memory.dmp

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memory/4900-19-0x0000000000D10000-0x0000000000D25000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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