tofsee | d3a5a7bd70448e907398655362e916a9de3c8e80f9af2582e6bacdb01b0b502a

General

Target

0886900e6ab222d3c07748d15656ac31.exe
Size

10.6MB
MD5

0886900e6ab222d3c07748d15656ac31
SHA1

09d03036d44c671692f1127c9f5b4a0d402b3774
SHA256

d3a5a7bd70448e907398655362e916a9de3c8e80f9af2582e6bacdb01b0b502a
SHA512

6520f0aa808539930f88c8f1f372f46de75c8ec12cee9774cbe3f885c78fe98a8c6a2c07171bb5d6aecef620e34fc9ef90e23451c166f7f7753107e914adb55f

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
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

jatwdqcb.exe

pid process

868 jatwdqcb.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112
Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1516 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jatwdqcb.exe

description pid process target process

PID 868 set thread context of 1516 868 jatwdqcb.exe svchost.exe
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

pid	process
868	jatwdqcb.exe

pid	process
1516	svchost.exe

description	pid	process	target process
PID 868 set thread context of 1516	868	jatwdqcb.exe	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0886900e6ab222d3c07748d15656ac31.exejatwdqcb.exe

description	pid	process	target process
PID 1208 wrote to memory of 1148	1208	0886900e6ab222d3c07748d15656ac31.exe	cmd.exe
PID 1208 wrote to memory of 1148	1208	0886900e6ab222d3c07748d15656ac31.exe	cmd.exe
PID 1208 wrote to memory of 1148	1208	0886900e6ab222d3c07748d15656ac31.exe	cmd.exe
PID 1208 wrote to memory of 1148	1208	0886900e6ab222d3c07748d15656ac31.exe	cmd.exe
PID 1208 wrote to memory of 1964	1208	0886900e6ab222d3c07748d15656ac31.exe	cmd.exe
PID 1208 wrote to memory of 1964	1208	0886900e6ab222d3c07748d15656ac31.exe	cmd.exe
PID 1208 wrote to memory of 1964	1208	0886900e6ab222d3c07748d15656ac31.exe	cmd.exe
PID 1208 wrote to memory of 1964	1208	0886900e6ab222d3c07748d15656ac31.exe	cmd.exe
PID 1208 wrote to memory of 1756	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1756	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1756	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1756	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1352	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1352	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1352	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1352	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1400	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1400	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1400	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1400	1208	0886900e6ab222d3c07748d15656ac31.exe	sc.exe
PID 1208 wrote to memory of 1884	1208	0886900e6ab222d3c07748d15656ac31.exe	netsh.exe
PID 1208 wrote to memory of 1884	1208	0886900e6ab222d3c07748d15656ac31.exe	netsh.exe
PID 1208 wrote to memory of 1884	1208	0886900e6ab222d3c07748d15656ac31.exe	netsh.exe
PID 1208 wrote to memory of 1884	1208	0886900e6ab222d3c07748d15656ac31.exe	netsh.exe
PID 868 wrote to memory of 1516	868	jatwdqcb.exe	svchost.exe
PID 868 wrote to memory of 1516	868	jatwdqcb.exe	svchost.exe
PID 868 wrote to memory of 1516	868	jatwdqcb.exe	svchost.exe
PID 868 wrote to memory of 1516	868	jatwdqcb.exe	svchost.exe
PID 868 wrote to memory of 1516	868	jatwdqcb.exe	svchost.exe
PID 868 wrote to memory of 1516	868	jatwdqcb.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0886900e6ab222d3c07748d15656ac31.exe
"C:\Users\Admin\AppData\Local\Temp\0886900e6ab222d3c07748d15656ac31.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1208

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\driilcwr\
2⤵
PID:1148

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jatwdqcb.exe" C:\Windows\SysWOW64\driilcwr\
2⤵
PID:1964

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create driilcwr binPath= "C:\Windows\SysWOW64\driilcwr\jatwdqcb.exe /d\"C:\Users\Admin\AppData\Local\Temp\0886900e6ab222d3c07748d15656ac31.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
PID:1756

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description driilcwr "wifi internet conection"
2⤵
PID:1352

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start driilcwr
2⤵
PID:1400

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:1884

C:\Windows\SysWOW64\driilcwr\jatwdqcb.exe
C:\Windows\SysWOW64\driilcwr\jatwdqcb.exe /d"C:\Users\Admin\AppData\Local\Temp\0886900e6ab222d3c07748d15656ac31.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:868

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Deletes itself
PID:1516

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1

T1050

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

New Service

1

T1050

Defense Evasion

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\jatwdqcb.exe
MD5
9f3d5a58ded585b7eb69472e0b4b3cb3

SHA1
763d72bca80e9c09d9d2031d863b42612f72b478

SHA256
655beaf4a72c4058c9b0f30697553a14be6f18b7eb94ed64515a4162f5a92ebb

SHA512
451b1fd5640334545f30dafb538df4312fd9222338f64b218df0127913db2566d3da6eb5035eae64fe83cace35eb2d8adc46b85d4619ab9db2a1f1d4a1af8a06

Download Submit
C:\Windows\SysWOW64\driilcwr\jatwdqcb.exe
MD5
9f3d5a58ded585b7eb69472e0b4b3cb3

SHA1
763d72bca80e9c09d9d2031d863b42612f72b478

SHA256
655beaf4a72c4058c9b0f30697553a14be6f18b7eb94ed64515a4162f5a92ebb

SHA512
451b1fd5640334545f30dafb538df4312fd9222338f64b218df0127913db2566d3da6eb5035eae64fe83cace35eb2d8adc46b85d4619ab9db2a1f1d4a1af8a06

Download Submit
memory/1148-2-0x0000000000000000-mapping.dmp

Download
memory/1352-6-0x0000000000000000-mapping.dmp

Download
memory/1400-7-0x0000000000000000-mapping.dmp

Download
memory/1516-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1516-11-0x0000000000089A6B-mapping.dmp

Download
memory/1756-5-0x0000000000000000-mapping.dmp

Download
memory/1884-8-0x0000000000000000-mapping.dmp

Download
memory/1964-3-0x0000000000000000-mapping.dmp

Download

Analysis

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