vidar | 1fbbaa6cfa20d6e11a3e5e4ba0702f608d474cbf5a86eef891fb57a671c684be

General

Target

bc8f0bfb94d9a4455282bb072b79e858.exe
Size

683KB
MD5

bc8f0bfb94d9a4455282bb072b79e858
SHA1

bb004397b82ba101f65a6aa9e8c7533061c01e2b
SHA256

1fbbaa6cfa20d6e11a3e5e4ba0702f608d474cbf5a86eef891fb57a671c684be
SHA512

60a40427f9011abc97e48dace42c8b0d9f39b1416e0d8dd27bab1110d99248fb8e273bd4218b8427bf6a4525c6d157b021703e43d5c5473d95f26f6e7d5ef1ad

Score

10^/10

vidar 1008 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

41.3

Botnet

1008

C2

https://mas.to/@oleg98

Attributes

profile_id
1008

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Vidar Stealer 1 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3128-116-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar

Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

bc8f0bfb94d9a4455282bb072b79e858.exe

pid process

3128 bc8f0bfb94d9a4455282bb072b79e858.exe
3128 bc8f0bfb94d9a4455282bb072b79e858.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

bc8f0bfb94d9a4455282bb072b79e858.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	bc8f0bfb94d9a4455282bb072b79e858.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bc8f0bfb94d9a4455282bb072b79e858.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3008 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

676 taskkill.exe

pid	process
3008	timeout.exe

pid	process
676	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

bc8f0bfb94d9a4455282bb072b79e858.exe

pid	process
3128	bc8f0bfb94d9a4455282bb072b79e858.exe
3128	bc8f0bfb94d9a4455282bb072b79e858.exe
3128	bc8f0bfb94d9a4455282bb072b79e858.exe
3128	bc8f0bfb94d9a4455282bb072b79e858.exe
3128	bc8f0bfb94d9a4455282bb072b79e858.exe
3128	bc8f0bfb94d9a4455282bb072b79e858.exe
3128	bc8f0bfb94d9a4455282bb072b79e858.exe
3128	bc8f0bfb94d9a4455282bb072b79e858.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 676 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	676	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

bc8f0bfb94d9a4455282bb072b79e858.execmd.exe

description	pid	process	target process
PID 3128 wrote to memory of 708	3128	bc8f0bfb94d9a4455282bb072b79e858.exe	cmd.exe
PID 3128 wrote to memory of 708	3128	bc8f0bfb94d9a4455282bb072b79e858.exe	cmd.exe
PID 3128 wrote to memory of 708	3128	bc8f0bfb94d9a4455282bb072b79e858.exe	cmd.exe
PID 708 wrote to memory of 676	708	cmd.exe	taskkill.exe
PID 708 wrote to memory of 676	708	cmd.exe	taskkill.exe
PID 708 wrote to memory of 676	708	cmd.exe	taskkill.exe
PID 708 wrote to memory of 3008	708	cmd.exe	timeout.exe
PID 708 wrote to memory of 3008	708	cmd.exe	timeout.exe
PID 708 wrote to memory of 3008	708	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\bc8f0bfb94d9a4455282bb072b79e858.exe
"C:\Users\Admin\AppData\Local\Temp\bc8f0bfb94d9a4455282bb072b79e858.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3128

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im bc8f0bfb94d9a4455282bb072b79e858.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\bc8f0bfb94d9a4455282bb072b79e858.exe" & del C:\ProgramData\*.dll & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:708

C:\Windows\SysWOW64\taskkill.exe
taskkill /im bc8f0bfb94d9a4455282bb072b79e858.exe /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:676

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:3008

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/676-120-0x0000000000000000-mapping.dmp

Download
memory/708-119-0x0000000000000000-mapping.dmp

Download
memory/3008-121-0x0000000000000000-mapping.dmp

Download
memory/3128-115-0x00000000005C0000-0x000000000070A000-memory.dmp

Filesize
1.3MB

Download
memory/3128-116-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads