tofsee | 2668ea58977d5457c1bcb28d04d1b55692fc7d6a64bfc3413a2cede20e838cf4

General

Target

feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe
Size

13.5MB
MD5

feb515efe8237480211f2fabe3976bdf
SHA1

d30c04512b4e2a34f1825b1fb8742be1d004cbc0
SHA256

2668ea58977d5457c1bcb28d04d1b55692fc7d6a64bfc3413a2cede20e838cf4
SHA512

a3eedc03386d4732ccd22bcaf04a4470bd711cbb3511390abe10394a4fbf5e1309adf549005816784a7e54ec1eb2f2bcdba1121bbe4bbd8460193fa3d70b9a8d
SSDEEP

196608:r+TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTn:r

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

1984 netsh.exe

pid	process
1984	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\mpwqpgtj\ImagePath = "C:\\Windows\\SysWOW64\\mpwqpgtj\\nzlttetb.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:

feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4708 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

nzlttetb.exe

pid process

4152 nzlttetb.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

nzlttetb.exe

description pid process target process

PID 4152 set thread context of 4708 4152 nzlttetb.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

3780 sc.exe
1764 sc.exe
4560 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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

5072 4152 WerFault.exe nzlttetb.exe
2044 568 WerFault.exe feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe

pid	process
4708	svchost.exe

pid	process
4152	nzlttetb.exe

description	pid	process	target process
PID 4152 set thread context of 4708	4152	nzlttetb.exe	svchost.exe

pid	process
3780	sc.exe
1764	sc.exe
4560	sc.exe

pid	pid_target	process	target process
5072	4152	WerFault.exe	nzlttetb.exe
2044	568	WerFault.exe	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exenzlttetb.exe

description	pid	process	target process
PID 568 wrote to memory of 4448	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	cmd.exe
PID 568 wrote to memory of 4448	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	cmd.exe
PID 568 wrote to memory of 4448	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	cmd.exe
PID 568 wrote to memory of 1188	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	cmd.exe
PID 568 wrote to memory of 1188	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	cmd.exe
PID 568 wrote to memory of 1188	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	cmd.exe
PID 568 wrote to memory of 3780	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 3780	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 3780	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 1764	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 1764	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 1764	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 4560	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 4560	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 4560	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	sc.exe
PID 568 wrote to memory of 1984	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	netsh.exe
PID 568 wrote to memory of 1984	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	netsh.exe
PID 568 wrote to memory of 1984	568	feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe	netsh.exe
PID 4152 wrote to memory of 4708	4152	nzlttetb.exe	svchost.exe
PID 4152 wrote to memory of 4708	4152	nzlttetb.exe	svchost.exe
PID 4152 wrote to memory of 4708	4152	nzlttetb.exe	svchost.exe
PID 4152 wrote to memory of 4708	4152	nzlttetb.exe	svchost.exe
PID 4152 wrote to memory of 4708	4152	nzlttetb.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:568

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mpwqpgtj\
2⤵
PID:4448

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nzlttetb.exe" C:\Windows\SysWOW64\mpwqpgtj\
2⤵
PID:1188

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create mpwqpgtj binPath= "C:\Windows\SysWOW64\mpwqpgtj\nzlttetb.exe /d\"C:\Users\Admin\AppData\Local\Temp\feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3780

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description mpwqpgtj "wifi internet conection"
2⤵
- Launches sc.exe
PID:1764

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start mpwqpgtj
2⤵
- Launches sc.exe
PID:4560

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:1984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1228
2⤵
- Program crash
PID:2044

C:\Windows\SysWOW64\mpwqpgtj\nzlttetb.exe
C:\Windows\SysWOW64\mpwqpgtj\nzlttetb.exe /d"C:\Users\Admin\AppData\Local\Temp\feb515efe8237480211f2fabe3976bdf_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4152

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4152 -s 556
2⤵
- Program crash
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 568 -ip 568
1⤵
PID:4704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4152 -ip 4152
1⤵
PID:3880

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=3020 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
1⤵
PID:1560

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\nzlttetb.exe
Filesize
12.7MB

MD5
c0090086d0c4e6a442e4473e3f76e112

SHA1
e437d4315c233f9bc238e52e8feb9dfb0aa15696

SHA256
38735369e13eca22acde68b2e2e87e11639639554613ad98cc7f4d3d585fe510

SHA512
3872c3331583a12cd718569320a3741c0e5bf7b0d77fb1a535977d3637745d3fbc5b5793af01dd888a37f58c584ae365844875b48b857503c8fe85b9bc78d7fb

Download Submit
memory/568-1-0x0000000000A50000-0x0000000000B50000-memory.dmp

Filesize
1024KB

Download
memory/568-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/568-3-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/568-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/4152-9-0x0000000000980000-0x0000000000A80000-memory.dmp

Filesize
1024KB

Download
memory/4152-10-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/4152-13-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/4152-16-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/4708-11-0x0000000000A30000-0x0000000000A45000-memory.dmp

Filesize
84KB

Download
memory/4708-15-0x0000000000A30000-0x0000000000A45000-memory.dmp

Filesize
84KB

Download
memory/4708-18-0x0000000000A30000-0x0000000000A45000-memory.dmp

Filesize
84KB

Download
memory/4708-19-0x0000000000A30000-0x0000000000A45000-memory.dmp

Filesize
84KB

Download
memory/4708-20-0x0000000000A30000-0x0000000000A45000-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