tofsee | 2d09b4467fcf47fe6e2f95ea3af4b5dffe0522d87c1cbbe85bbe71ba81d7f628

General

Target

977f60bb46c98f4fece2c317fc17c504.exe
Size

14.2MB
MD5

977f60bb46c98f4fece2c317fc17c504
SHA1

d246ad0209ed7041b0ee9004b36a4bad0513d876
SHA256

2d09b4467fcf47fe6e2f95ea3af4b5dffe0522d87c1cbbe85bbe71ba81d7f628
SHA512

4104422354bce5a50c08dda09529ddaef96fde520a84cf5f3c2ebfec794dfd1ba0c3ae0c7483ca6aef9c104f389db07793e05f0b1905a0fe7d03609c01677a39

Score

10^/10

tofsee evasion persistence trojan

Malware Config

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

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

cesthprb.exe

pid process

272 cesthprb.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Suspicious use of SetThreadContext 1 IoCs

Processes:

cesthprb.exe

description pid process target process

PID 272 set thread context of 1144 272 cesthprb.exe svchost.exe
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

pid	process
272	cesthprb.exe

description	pid	process	target process
PID 272 set thread context of 1144	272	cesthprb.exe	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

977f60bb46c98f4fece2c317fc17c504.execesthprb.exe

description	pid	process	target process
PID 1668 wrote to memory of 1168	1668	977f60bb46c98f4fece2c317fc17c504.exe	cmd.exe
PID 1668 wrote to memory of 1168	1668	977f60bb46c98f4fece2c317fc17c504.exe	cmd.exe
PID 1668 wrote to memory of 1168	1668	977f60bb46c98f4fece2c317fc17c504.exe	cmd.exe
PID 1668 wrote to memory of 1168	1668	977f60bb46c98f4fece2c317fc17c504.exe	cmd.exe
PID 1668 wrote to memory of 868	1668	977f60bb46c98f4fece2c317fc17c504.exe	cmd.exe
PID 1668 wrote to memory of 868	1668	977f60bb46c98f4fece2c317fc17c504.exe	cmd.exe
PID 1668 wrote to memory of 868	1668	977f60bb46c98f4fece2c317fc17c504.exe	cmd.exe
PID 1668 wrote to memory of 868	1668	977f60bb46c98f4fece2c317fc17c504.exe	cmd.exe
PID 1668 wrote to memory of 1772	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 1772	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 1772	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 1772	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 796	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 796	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 796	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 796	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 760	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 760	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 760	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 760	1668	977f60bb46c98f4fece2c317fc17c504.exe	sc.exe
PID 1668 wrote to memory of 1076	1668	977f60bb46c98f4fece2c317fc17c504.exe	netsh.exe
PID 1668 wrote to memory of 1076	1668	977f60bb46c98f4fece2c317fc17c504.exe	netsh.exe
PID 1668 wrote to memory of 1076	1668	977f60bb46c98f4fece2c317fc17c504.exe	netsh.exe
PID 1668 wrote to memory of 1076	1668	977f60bb46c98f4fece2c317fc17c504.exe	netsh.exe
PID 272 wrote to memory of 1144	272	cesthprb.exe	svchost.exe
PID 272 wrote to memory of 1144	272	cesthprb.exe	svchost.exe
PID 272 wrote to memory of 1144	272	cesthprb.exe	svchost.exe
PID 272 wrote to memory of 1144	272	cesthprb.exe	svchost.exe
PID 272 wrote to memory of 1144	272	cesthprb.exe	svchost.exe
PID 272 wrote to memory of 1144	272	cesthprb.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\977f60bb46c98f4fece2c317fc17c504.exe
"C:\Users\Admin\AppData\Local\Temp\977f60bb46c98f4fece2c317fc17c504.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xkqcybpl\
2⤵
PID:1168

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cesthprb.exe" C:\Windows\SysWOW64\xkqcybpl\
2⤵
PID:868

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xkqcybpl binPath= "C:\Windows\SysWOW64\xkqcybpl\cesthprb.exe /d\"C:\Users\Admin\AppData\Local\Temp\977f60bb46c98f4fece2c317fc17c504.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
PID:1772

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xkqcybpl "wifi internet conection"
2⤵
PID:796

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xkqcybpl
2⤵
PID:760

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⤵
PID:1076

C:\Windows\SysWOW64\xkqcybpl\cesthprb.exe
C:\Windows\SysWOW64\xkqcybpl\cesthprb.exe /d"C:\Users\Admin\AppData\Local\Temp\977f60bb46c98f4fece2c317fc17c504.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:272

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
PID:1144

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1

T1050

Modify Existing Service

1

T1031

Privilege Escalation

New Service

1

T1050

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\cesthprb.exe
MD5
7051af2a3ac88a17e9df406524773144

SHA1
ecbed7506d0a6dcc57008cb02b800842d7c52292

SHA256
d32000fe70f3ccca911391ffb271071df63ac520438144157f2056d2f0db5b56

SHA512
253a19608f172846fe31794366bbf9a0d5f8c607c2b934f55f0337600489570e88fe029d98ac0f22006ce22d2be461e77c722e3285d86091832c4c570c18f5ed

Download Submit
C:\Windows\SysWOW64\xkqcybpl\cesthprb.exe
MD5
7051af2a3ac88a17e9df406524773144

SHA1
ecbed7506d0a6dcc57008cb02b800842d7c52292

SHA256
d32000fe70f3ccca911391ffb271071df63ac520438144157f2056d2f0db5b56

SHA512
253a19608f172846fe31794366bbf9a0d5f8c607c2b934f55f0337600489570e88fe029d98ac0f22006ce22d2be461e77c722e3285d86091832c4c570c18f5ed

Download Submit
memory/760-7-0x0000000000000000-mapping.dmp

Download
memory/796-6-0x0000000000000000-mapping.dmp

Download
memory/868-3-0x0000000000000000-mapping.dmp

Download
memory/1076-8-0x0000000000000000-mapping.dmp

Download
memory/1144-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1144-11-0x00000000000D9A6B-mapping.dmp

Download
memory/1168-2-0x0000000000000000-mapping.dmp

Download
memory/1772-5-0x0000000000000000-mapping.dmp

Download

Analysis

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