tofsee | a4944054682d38caacc690fba9a286c0edb217c5d3e099d47d5e492d3807da9a

General

Target

51a0acc8c78452456894a85db18c31a9.exe
Size

10.3MB
MD5

51a0acc8c78452456894a85db18c31a9
SHA1

bfc6fb39ef21d6626fec260216178ebfb47f86fa
SHA256

a4944054682d38caacc690fba9a286c0edb217c5d3e099d47d5e492d3807da9a
SHA512

6efe90fe8badba612187109691771e3bb297e430a7a86305fa600092badc910ec93a0b89b5432d6b7b900033648dab2c838d8a05cf755cc9a86857b3301e54ad

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:

caoabwua.exe

pid process

1748 caoabwua.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Suspicious use of SetThreadContext 1 IoCs

Processes:

caoabwua.exe

description pid process target process

PID 1748 set thread context of 1740 1748 caoabwua.exe svchost.exe
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

pid	process
1748	caoabwua.exe

description	pid	process	target process
PID 1748 set thread context of 1740	1748	caoabwua.exe	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

51a0acc8c78452456894a85db18c31a9.execaoabwua.exe

description	pid	process	target process
PID 1824 wrote to memory of 1100	1824	51a0acc8c78452456894a85db18c31a9.exe	cmd.exe
PID 1824 wrote to memory of 1100	1824	51a0acc8c78452456894a85db18c31a9.exe	cmd.exe
PID 1824 wrote to memory of 1100	1824	51a0acc8c78452456894a85db18c31a9.exe	cmd.exe
PID 1824 wrote to memory of 1100	1824	51a0acc8c78452456894a85db18c31a9.exe	cmd.exe
PID 1824 wrote to memory of 1316	1824	51a0acc8c78452456894a85db18c31a9.exe	cmd.exe
PID 1824 wrote to memory of 1316	1824	51a0acc8c78452456894a85db18c31a9.exe	cmd.exe
PID 1824 wrote to memory of 1316	1824	51a0acc8c78452456894a85db18c31a9.exe	cmd.exe
PID 1824 wrote to memory of 1316	1824	51a0acc8c78452456894a85db18c31a9.exe	cmd.exe
PID 1824 wrote to memory of 268	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 268	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 268	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 268	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1164	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1164	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1164	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1164	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1552	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1552	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1552	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1552	1824	51a0acc8c78452456894a85db18c31a9.exe	sc.exe
PID 1824 wrote to memory of 1968	1824	51a0acc8c78452456894a85db18c31a9.exe	netsh.exe
PID 1824 wrote to memory of 1968	1824	51a0acc8c78452456894a85db18c31a9.exe	netsh.exe
PID 1824 wrote to memory of 1968	1824	51a0acc8c78452456894a85db18c31a9.exe	netsh.exe
PID 1824 wrote to memory of 1968	1824	51a0acc8c78452456894a85db18c31a9.exe	netsh.exe
PID 1748 wrote to memory of 1740	1748	caoabwua.exe	svchost.exe
PID 1748 wrote to memory of 1740	1748	caoabwua.exe	svchost.exe
PID 1748 wrote to memory of 1740	1748	caoabwua.exe	svchost.exe
PID 1748 wrote to memory of 1740	1748	caoabwua.exe	svchost.exe
PID 1748 wrote to memory of 1740	1748	caoabwua.exe	svchost.exe
PID 1748 wrote to memory of 1740	1748	caoabwua.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\51a0acc8c78452456894a85db18c31a9.exe
"C:\Users\Admin\AppData\Local\Temp\51a0acc8c78452456894a85db18c31a9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1824

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\voggizkt\
2⤵
PID:1100

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\caoabwua.exe" C:\Windows\SysWOW64\voggizkt\
2⤵
PID:1316

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create voggizkt binPath= "C:\Windows\SysWOW64\voggizkt\caoabwua.exe /d\"C:\Users\Admin\AppData\Local\Temp\51a0acc8c78452456894a85db18c31a9.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
PID:268

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description voggizkt "wifi internet conection"
2⤵
PID:1164

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start voggizkt
2⤵
PID:1552

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:1968

C:\Windows\SysWOW64\voggizkt\caoabwua.exe
C:\Windows\SysWOW64\voggizkt\caoabwua.exe /d"C:\Users\Admin\AppData\Local\Temp\51a0acc8c78452456894a85db18c31a9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1748

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
PID:1740

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\caoabwua.exe
MD5
4dfd99d09894df5c51dfd3e9a0de398e

SHA1
aa2668d4cddfa5e7fb8b72e7259f40fcd9a61705

SHA256
606579bc7d05ec64731de027e7cd445e395946236226983c8e2c16bc09da95b5

SHA512
928ef2218f48956ebbe6826e04482a8db482fb89d42eb3b2821417ff544f1c65299800a94cc263dbee1610ea068b18054e703ba0375d57d3d7d7beaa579dee68

Download Submit
C:\Windows\SysWOW64\voggizkt\caoabwua.exe
MD5
4dfd99d09894df5c51dfd3e9a0de398e

SHA1
aa2668d4cddfa5e7fb8b72e7259f40fcd9a61705

SHA256
606579bc7d05ec64731de027e7cd445e395946236226983c8e2c16bc09da95b5

SHA512
928ef2218f48956ebbe6826e04482a8db482fb89d42eb3b2821417ff544f1c65299800a94cc263dbee1610ea068b18054e703ba0375d57d3d7d7beaa579dee68

Download Submit
memory/268-5-0x0000000000000000-mapping.dmp

Download
memory/1100-2-0x0000000000000000-mapping.dmp

Download
memory/1164-6-0x0000000000000000-mapping.dmp

Download
memory/1316-3-0x0000000000000000-mapping.dmp

Download
memory/1552-7-0x0000000000000000-mapping.dmp

Download
memory/1740-11-0x00000000000C9A6B-mapping.dmp

Download
memory/1740-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1968-8-0x0000000000000000-mapping.dmp

Download

Analysis

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