tofsee | 0554a5c223f9ad4748018db751a20f23589c8ed93a5f118941ea6e5a0b794cd1

General

Target

f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe
Size

12.9MB
MD5

f427dd2a74d5dc82ea884b973d2df32b
SHA1

74dbbe53e39aba884a87de297cf6e71fe0a7929a
SHA256

0554a5c223f9ad4748018db751a20f23589c8ed93a5f118941ea6e5a0b794cd1
SHA512

0630e26f057741e8688205d3994c66429804b89aa0d72380e892aecbd275dc8f7d4cf0e2d61eb57855b50aab910208a84b125aa16f76041504e108612cfc934e
SSDEEP

24576:CjDuKnh7YzbKBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBl:Cnh

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

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

Processes:

netsh.exe

pid process

2556 netsh.exe

pid	process
2556	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\nfsebuuh\ImagePath = "C:\\Windows\\SysWOW64\\nfsebuuh\\avfiwhhp.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:

f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

avfiwhhp.exe

pid process

1968 avfiwhhp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

avfiwhhp.exe

description pid process target process

PID 1968 set thread context of 4520 1968 avfiwhhp.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

4392 sc.exe
1672 sc.exe
2380 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1968	avfiwhhp.exe

description	pid	process	target process
PID 1968 set thread context of 4520	1968	avfiwhhp.exe	svchost.exe

pid	process
4392	sc.exe
1672	sc.exe
2380	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exeavfiwhhp.exe

description	pid	process	target process
PID 1076 wrote to memory of 2768	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 1076 wrote to memory of 2768	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 1076 wrote to memory of 2768	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 1076 wrote to memory of 1264	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 1076 wrote to memory of 1264	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 1076 wrote to memory of 1264	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 1076 wrote to memory of 2380	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 2380	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 2380	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 4392	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 4392	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 4392	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 1672	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 1672	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 1672	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 1076 wrote to memory of 2556	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	netsh.exe
PID 1076 wrote to memory of 2556	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	netsh.exe
PID 1076 wrote to memory of 2556	1076	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	netsh.exe
PID 1968 wrote to memory of 4520	1968	avfiwhhp.exe	svchost.exe
PID 1968 wrote to memory of 4520	1968	avfiwhhp.exe	svchost.exe
PID 1968 wrote to memory of 4520	1968	avfiwhhp.exe	svchost.exe
PID 1968 wrote to memory of 4520	1968	avfiwhhp.exe	svchost.exe
PID 1968 wrote to memory of 4520	1968	avfiwhhp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1076

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nfsebuuh\
2⤵
PID:2768

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\avfiwhhp.exe" C:\Windows\SysWOW64\nfsebuuh\
2⤵
PID:1264

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create nfsebuuh binPath= "C:\Windows\SysWOW64\nfsebuuh\avfiwhhp.exe /d\"C:\Users\Admin\AppData\Local\Temp\f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2380

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description nfsebuuh "wifi internet conection"
2⤵
- Launches sc.exe
PID:4392

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start nfsebuuh
2⤵
- Launches sc.exe
PID:1672

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:2556

C:\Windows\SysWOW64\nfsebuuh\avfiwhhp.exe
C:\Windows\SysWOW64\nfsebuuh\avfiwhhp.exe /d"C:\Users\Admin\AppData\Local\Temp\f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:4520

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=4060 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:4160

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\avfiwhhp.exe
Filesize
13.2MB

MD5
28c5f4158d840f082fe8c5235ea73fb5

SHA1
509a4ff3451a5f59384b54a1a90f07082a220284

SHA256
8039c6be3fa1cb6124169f9ce8e39fe0482d88114a087a5b47227dc17aa1aa4e

SHA512
96c9235b6bdbaf2bf07d04766fa7e19c1614e65127e5e7b989bae36e7734efcb5f6a540689e74f3db40c6ffe7993fc6d02ea91b4bf2973928406ee9c69d16cf7

Download Submit
memory/1076-1-0x0000000000700000-0x0000000000800000-memory.dmp

Filesize
1024KB

Download
memory/1076-2-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download
memory/1076-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1076-5-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1076-9-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1076-21-0x0000000000700000-0x0000000000800000-memory.dmp

Filesize
1024KB

Download
memory/1968-12-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1968-11-0x00000000005C0000-0x00000000005D3000-memory.dmp

Filesize
76KB

Download
memory/1968-17-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1968-10-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/4520-13-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download
memory/4520-16-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download
memory/4520-18-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download
memory/4520-19-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download
memory/4520-28-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads