tofsee | 2ba091fbd479ba0371e00c7339034c2473d4e6f6e6ab0fab9e558cedfa763f12

Resubmissions

31/03/2024, 16:21

240331-ttr4zseg2x10

31/03/2024, 16:17

240331-trnnsaef7y10

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
31/03/2024, 16:17

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General

Target
583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe
Size 11.5MB
Sample240331-trnnsaef7y
SHA256 2ba091fbd479ba0371e00c7339034c2473d4e6f6e6ab0fab9e558cedfa763f12
MD5 583f7daeb71897f7b1af1f5592b0f409
SHA1 74edf8b9daed112da262fd30e25a17debcbf155d
SHA512 4a5d99c8e8a6b7e45216841d91f92976412c9fbb602f14ed0089aab43d023b1fe1ff791ca40d1ca4aa54b186ffd265ec0a7d49aaf5cbfdf74c74f800a3811069
SSDEEP 49152:xIghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh:m
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
3028	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\gdyevofa\ImagePath = "C:\\Windows\\SysWOW64\\gdyevofa\\dkitythv.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	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2456	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4428	dkitythv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4428 set thread context of 2456	4428	dkitythv.exe	116

Launches sc.exe 3 IoCs

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

pid	Process
3032	sc.exe
2036	sc.exe
1448	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
2616	4536	WerFault.exe	92
3720	4428	WerFault.exe	108

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 3256	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	96
PID 4536 wrote to memory of 3256	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	96
PID 4536 wrote to memory of 3256	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	96
PID 4536 wrote to memory of 2360	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	98
PID 4536 wrote to memory of 2360	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	98
PID 4536 wrote to memory of 2360	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	98
PID 4536 wrote to memory of 3032	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	100
PID 4536 wrote to memory of 3032	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	100
PID 4536 wrote to memory of 3032	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	100
PID 4536 wrote to memory of 2036	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	102
PID 4536 wrote to memory of 2036	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	102
PID 4536 wrote to memory of 2036	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	102
PID 4536 wrote to memory of 1448	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	106
PID 4536 wrote to memory of 1448	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	106
PID 4536 wrote to memory of 1448	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	106
PID 4536 wrote to memory of 3028	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	109
PID 4536 wrote to memory of 3028	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	109
PID 4536 wrote to memory of 3028	4536	583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe	109
PID 4428 wrote to memory of 2456	4428	dkitythv.exe	116
PID 4428 wrote to memory of 2456	4428	dkitythv.exe	116
PID 4428 wrote to memory of 2456	4428	dkitythv.exe	116
PID 4428 wrote to memory of 2456	4428	dkitythv.exe	116
PID 4428 wrote to memory of 2456	4428	dkitythv.exe	116

C:\Users\Admin\AppData\Local\Temp\583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gdyevofa\
  2⤵
  PID:3256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dkitythv.exe" C:\Windows\SysWOW64\gdyevofa\
  2⤵
  PID:2360
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gdyevofa binPath= "C:\Windows\SysWOW64\gdyevofa\dkitythv.exe /d\"C:\Users\Admin\AppData\Local\Temp\583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:3032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gdyevofa "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gdyevofa
  2⤵
  - Launches sc.exe
  PID:1448
- 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:3028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 1300
  2⤵
  - Program crash
  PID:2616

C:\Windows\SysWOW64\gdyevofa\dkitythv.exe
C:\Windows\SysWOW64\gdyevofa\dkitythv.exe /d"C:\Users\Admin\AppData\Local\Temp\583f7daeb71897f7b1af1f5592b0f409_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:2456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 516
  2⤵
  - Program crash
  PID:3720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4536 -ip 4536
1⤵
PID:3484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4428 -ip 4428
1⤵
PID:2440

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=3096 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:856

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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dkitythv.exe

Path C:\Users\Admin\AppData\Local\Temp\dkitythv.exe
Size 11.8MB
SHA256 a5d52d487f60f8389089ed2db1d8c6d303655693073ef5ad53ac4359c842b42c
MD5 32780a355f92be74943494331f8a3a31
SHA1 cf050029688e1cbed04ce5791398a7e06828fa0f
SHA512 87b308fb844e0774196d0fcd25722845a59ba9b98cfa3cdd048a474afb88f65944135fff6c1bd7278252ed47e27970841dd2d126aac0223eaabfe82e9583afa0
SSDEEP 49152:lIghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhn:q
MD5 SHA1 SHA512 SSDEEP

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memory/2456-15-0x0000000001230000-0x0000000001245000-memory.dmp

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memory/2456-12-0x0000000001230000-0x0000000001245000-memory.dmp

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memory/2456-17-0x0000000001230000-0x0000000001245000-memory.dmp

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memory/2456-18-0x0000000001230000-0x0000000001245000-memory.dmp

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memory/4428-10-0x0000000000AD0000-0x0000000000BD0000-memory.dmp

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memory/4428-11-0x0000000000400000-0x000000000086B000-memory.dmp

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memory/4428-16-0x0000000000400000-0x000000000086B000-memory.dmp

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memory/4536-3-0x0000000000400000-0x000000000086B000-memory.dmp

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memory/4536-2-0x0000000000CE0000-0x0000000000CF3000-memory.dmp

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memory/4536-8-0x0000000000400000-0x000000000086B000-memory.dmp

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memory/4536-9-0x0000000000CE0000-0x0000000000CF3000-memory.dmp

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memory/4536-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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