tofsee | f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b

General

Target

f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
Size

116KB
MD5

4ee3012b6de81e70ea3aeb1c8b63bde1
SHA1

11adf906465c1f81d157d068632c8a88acd676b2
SHA256

f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b
SHA512

0d618c0b8920eb684e09a9edacbbf680e6cc5b21a17f1a37c3ade0e0822b1421aa289c500a4db5c4ed4164f0844a91b76fe3ffc705379657ba97b074f73c3b27
SSDEEP

1536:7Jcg21s3VMp5fjgQpnFGQGbDjNQo066KE8oLEFTEcK3b:qgIpWQVFobvNTh6soHcKr

Score

10^/10

tofsee persistence trojan

Malware Config

Extracted

Family

tofsee

C2

103.9.150.244

188.190.120.102

121.127.250.203

188.165.132.183

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Executes dropped EXE 2 IoCs

Processes:

pqiggasf.exepqiggasf.exe

pid process

1236 pqiggasf.exe
1572 pqiggasf.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

556 cmd.exe

pid	process
1236	pqiggasf.exe
1572	pqiggasf.exe

pid	process
556	cmd.exe

Loads dropped DLL 2 IoCs

Processes:

f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe

pid	process
1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\pqiggasf.exe\""	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exepqiggasf.exepqiggasf.exe

description	pid	process	target process
PID 1768 set thread context of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1236 set thread context of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1572 set thread context of 520	1572	pqiggasf.exe	svchost.exe

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

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exepqiggasf.exe

pid process

1768 f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
1236 pqiggasf.exe

pid	process
1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
1236	pqiggasf.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exef0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exepqiggasf.exepqiggasf.exe

description	pid	process	target process
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1768 wrote to memory of 1332	1768	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
PID 1332 wrote to memory of 1236	1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	pqiggasf.exe
PID 1332 wrote to memory of 1236	1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	pqiggasf.exe
PID 1332 wrote to memory of 1236	1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	pqiggasf.exe
PID 1332 wrote to memory of 1236	1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	pqiggasf.exe
PID 1332 wrote to memory of 556	1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	cmd.exe
PID 1332 wrote to memory of 556	1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	cmd.exe
PID 1332 wrote to memory of 556	1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	cmd.exe
PID 1332 wrote to memory of 556	1332	f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe	cmd.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1236 wrote to memory of 1572	1236	pqiggasf.exe	pqiggasf.exe
PID 1572 wrote to memory of 520	1572	pqiggasf.exe	svchost.exe
PID 1572 wrote to memory of 520	1572	pqiggasf.exe	svchost.exe
PID 1572 wrote to memory of 520	1572	pqiggasf.exe	svchost.exe
PID 1572 wrote to memory of 520	1572	pqiggasf.exe	svchost.exe
PID 1572 wrote to memory of 520	1572	pqiggasf.exe	svchost.exe
PID 1572 wrote to memory of 520	1572	pqiggasf.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
"C:\Users\Admin\AppData\Local\Temp\f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1768

C:\Users\Admin\AppData\Local\Temp\f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe
"C:\Users\Admin\AppData\Local\Temp\f0442b8d5ee23b6a85a2f5543035a761a096df9d249dbb0944f9686ede04f59b.exe"
2⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1332

C:\Users\Admin\pqiggasf.exe
"C:\Users\Admin\pqiggasf.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1236

C:\Users\Admin\pqiggasf.exe
"C:\Users\Admin\pqiggasf.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1572

C:\Windows\SysWOW64\svchost.exe
svchost.exe
5⤵
PID:520

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\1158.bat" "
3⤵
- Deletes itself
PID:556

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

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\1158.bat
Filesize
302B

MD5
41394150cc0df28b0cbe851a6daa6671

SHA1
d05463e2aef296ee59324505ed4ed8a0aaa729f8

SHA256
850ace68451b04e3c3abdc2b900b7e9cb0b452290bfe519cf6ad209d11f5e76a

SHA512
1ef1d5759678bf9318f69cc3773f2e0df695b76238134acddf1f70361544ed2c5195acdae18c5f602b1e60a239a6fe0820e2bcabfc2257ad3e6d05708bf8ce48

Download Submit
C:\Users\Admin\pqiggasf.exe
Filesize
48.3MB

MD5
769add73a50a3f5d119b3d4c3d8307b5

SHA1
ba4693b5127cbb2c5a78d59f75acc3236fbb112a

SHA256
27d69f6139d4e07f59b6ae6e6fd0765a7d991404f428b5af9ef17e56f32865d1

SHA512
931942905ee83bac5a3e7b2c6f2bf016778ec8b8a1a4eaf264741cc23f42e2abe46707a3ad5bfffb3421afb64b2a8aab7cea992a104ba385f47bac8168a218c4

Download Submit
C:\Users\Admin\pqiggasf.exe
Filesize
48.3MB

MD5
769add73a50a3f5d119b3d4c3d8307b5

SHA1
ba4693b5127cbb2c5a78d59f75acc3236fbb112a

SHA256
27d69f6139d4e07f59b6ae6e6fd0765a7d991404f428b5af9ef17e56f32865d1

SHA512
931942905ee83bac5a3e7b2c6f2bf016778ec8b8a1a4eaf264741cc23f42e2abe46707a3ad5bfffb3421afb64b2a8aab7cea992a104ba385f47bac8168a218c4

Download Submit
C:\Users\Admin\pqiggasf.exe
Filesize
48.3MB

MD5
769add73a50a3f5d119b3d4c3d8307b5

SHA1
ba4693b5127cbb2c5a78d59f75acc3236fbb112a

SHA256
27d69f6139d4e07f59b6ae6e6fd0765a7d991404f428b5af9ef17e56f32865d1

SHA512
931942905ee83bac5a3e7b2c6f2bf016778ec8b8a1a4eaf264741cc23f42e2abe46707a3ad5bfffb3421afb64b2a8aab7cea992a104ba385f47bac8168a218c4

Download Submit
\Users\Admin\pqiggasf.exe
Filesize
48.3MB

MD5
769add73a50a3f5d119b3d4c3d8307b5

SHA1
ba4693b5127cbb2c5a78d59f75acc3236fbb112a

SHA256
27d69f6139d4e07f59b6ae6e6fd0765a7d991404f428b5af9ef17e56f32865d1

SHA512
931942905ee83bac5a3e7b2c6f2bf016778ec8b8a1a4eaf264741cc23f42e2abe46707a3ad5bfffb3421afb64b2a8aab7cea992a104ba385f47bac8168a218c4

Download Submit
\Users\Admin\pqiggasf.exe
Filesize
48.3MB

MD5
769add73a50a3f5d119b3d4c3d8307b5

SHA1
ba4693b5127cbb2c5a78d59f75acc3236fbb112a

SHA256
27d69f6139d4e07f59b6ae6e6fd0765a7d991404f428b5af9ef17e56f32865d1

SHA512
931942905ee83bac5a3e7b2c6f2bf016778ec8b8a1a4eaf264741cc23f42e2abe46707a3ad5bfffb3421afb64b2a8aab7cea992a104ba385f47bac8168a218c4

Download Submit
memory/520-101-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/520-100-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/520-94-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/520-95-0x000000000008785F-mapping.dmp

Download
memory/556-75-0x0000000000000000-mapping.dmp

Download
memory/1236-71-0x0000000000000000-mapping.dmp

Download
memory/1332-63-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1332-56-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1332-66-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1332-76-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1332-67-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1332-64-0x000000000040785F-mapping.dmp

Download
memory/1332-68-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1332-57-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1332-61-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1332-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1332-59-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1572-97-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1572-91-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1572-87-0x000000000040785F-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads