tofsee | 2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488

General

Target

2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe
Size

142KB
MD5

c20d3f9c5dcd93a3dfd3b6e9aeea2541
SHA1

c829d1ab536df96bcc67f136c8453b51e8407934
SHA256

2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488
SHA512

4dec42790939d1d486de2c43e802583c60ff984f1c7ed4c40b744635f3a0ec2c8c9c49c3bb6f2d1942cab0da21f61a62a62aaa07381cbc841ef5a49adf3195d9

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\hsfzauea = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

mmsoccia.exe

pid process

1128 mmsoccia.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1696 netsh.exe

pid	process
1128	mmsoccia.exe

pid	process
1696	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\hsfzauea\ImagePath = "C:\\Windows\\SysWOW64\\hsfzauea\\mmsoccia.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1864 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

mmsoccia.exe

description pid process target process

PID 1128 set thread context of 1864 1128 mmsoccia.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

1060 sc.exe
912 sc.exe
1556 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1864	svchost.exe

description	pid	process	target process
PID 1128 set thread context of 1864	1128	mmsoccia.exe	svchost.exe

pid	process
1060	sc.exe
912	sc.exe
1556	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exemmsoccia.exe

description	pid	process	target process
PID 1464 wrote to memory of 820	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	cmd.exe
PID 1464 wrote to memory of 820	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	cmd.exe
PID 1464 wrote to memory of 820	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	cmd.exe
PID 1464 wrote to memory of 820	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	cmd.exe
PID 1464 wrote to memory of 1744	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	cmd.exe
PID 1464 wrote to memory of 1744	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	cmd.exe
PID 1464 wrote to memory of 1744	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	cmd.exe
PID 1464 wrote to memory of 1744	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	cmd.exe
PID 1464 wrote to memory of 1060	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 1060	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 1060	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 1060	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 912	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 912	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 912	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 912	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 1556	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 1556	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 1556	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 1556	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	sc.exe
PID 1464 wrote to memory of 1696	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	netsh.exe
PID 1464 wrote to memory of 1696	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	netsh.exe
PID 1464 wrote to memory of 1696	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	netsh.exe
PID 1464 wrote to memory of 1696	1464	2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe	netsh.exe
PID 1128 wrote to memory of 1864	1128	mmsoccia.exe	svchost.exe
PID 1128 wrote to memory of 1864	1128	mmsoccia.exe	svchost.exe
PID 1128 wrote to memory of 1864	1128	mmsoccia.exe	svchost.exe
PID 1128 wrote to memory of 1864	1128	mmsoccia.exe	svchost.exe
PID 1128 wrote to memory of 1864	1128	mmsoccia.exe	svchost.exe
PID 1128 wrote to memory of 1864	1128	mmsoccia.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe
"C:\Users\Admin\AppData\Local\Temp\2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1464

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hsfzauea\
2⤵
PID:820

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mmsoccia.exe" C:\Windows\SysWOW64\hsfzauea\
2⤵
PID:1744

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create hsfzauea binPath= "C:\Windows\SysWOW64\hsfzauea\mmsoccia.exe /d\"C:\Users\Admin\AppData\Local\Temp\2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1060

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description hsfzauea "wifi internet conection"
2⤵
- Launches sc.exe
PID:912

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start hsfzauea
2⤵
- Launches sc.exe
PID:1556

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:1696

C:\Windows\SysWOW64\hsfzauea\mmsoccia.exe
C:\Windows\SysWOW64\hsfzauea\mmsoccia.exe /d"C:\Users\Admin\AppData\Local\Temp\2391d4e6b02d6ba9ce47ca34a88260c83c2f72a0886932be5a63c117a31c9488.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1128

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1864

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\mmsoccia.exe
Filesize
11.5MB

MD5
cbf4e0d7b4a6fd43d768bbd5ed812de5

SHA1
3131d98644079e4e4bc08db96f079fdce560404f

SHA256
6150ae456148fa1be0244cf4f915a6a9ed7c8b912e5b217ae1613fabf6e4d628

SHA512
4da7edd53a016e189be943d0012e0810463557db26dbe62a9f9a312048b3fcbdd296e414239d8f748f5ac839d5ae8c40284cafe5ad6b63c5283cdf2b89e0c89a

Download Submit
C:\Windows\SysWOW64\hsfzauea\mmsoccia.exe
Filesize
11.5MB

MD5
cbf4e0d7b4a6fd43d768bbd5ed812de5

SHA1
3131d98644079e4e4bc08db96f079fdce560404f

SHA256
6150ae456148fa1be0244cf4f915a6a9ed7c8b912e5b217ae1613fabf6e4d628

SHA512
4da7edd53a016e189be943d0012e0810463557db26dbe62a9f9a312048b3fcbdd296e414239d8f748f5ac839d5ae8c40284cafe5ad6b63c5283cdf2b89e0c89a

Download Submit
memory/820-56-0x0000000000000000-mapping.dmp

Download
memory/912-60-0x0000000000000000-mapping.dmp

Download
memory/1060-59-0x0000000000000000-mapping.dmp

Download
memory/1128-65-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1464-55-0x0000000074B51000-0x0000000074B53000-memory.dmp

Filesize
8KB

Download
memory/1464-54-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1556-61-0x0000000000000000-mapping.dmp

Download
memory/1696-62-0x0000000000000000-mapping.dmp

Download
memory/1744-57-0x0000000000000000-mapping.dmp

Download
memory/1864-67-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1864-69-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1864-70-0x0000000000089A6B-mapping.dmp

Download
memory/1864-74-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1864-75-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads