vidar | 2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c

General

Target

2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c.exe
Size

1.2MB
MD5

38c0f733e983c0e12a6ab7ba2b1415ed
SHA1

ef4d3272107b362eaa8e78ba73373304110d040a
SHA256

2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c
SHA512

aed4e4ae28d7490e01a3b8ab9bec2497a5ed433bb51913da2d2acb46fadda446f58334cf2cb1c20e5e501872a467b9c79cb5add24c4999ab848ddd69a8738126

Score

10^/10

vidar 921 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

41.6

Botnet

921

C2

https://mas.to/@lilocc

Attributes

profile_id
921

Signatures

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

Vidar Stealer 3 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/3492-118-0x0000000003690000-0x0000000003768000-memory.dmp	family_vidar
C:\Users\Admin\AppData\Local\Temp\build.exe	family_vidar
C:\Users\Admin\AppData\Local\Temp\build.exe	family_vidar

Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

build.exe

pid process

2288 build.exe
Loads dropped DLL 2 IoCs

Processes:

build.exe

pid process

2288 build.exe
2288 build.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

pid	process
2288	build.exe

pid	process
2288	build.exe
2288	build.exe

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:

build.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3400 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3640 taskkill.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

build.exe

pid process

2288 build.exe
2288 build.exe
2288 build.exe
2288 build.exe
2288 build.exe
2288 build.exe
2288 build.exe
2288 build.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3640 taskkill.exe

pid	process
3400	timeout.exe

pid	process
3640	taskkill.exe

pid	process
2288	build.exe
2288	build.exe
2288	build.exe
2288	build.exe
2288	build.exe
2288	build.exe
2288	build.exe
2288	build.exe

description	pid	process
Token: SeDebugPrivilege	3640	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c.exebuild.execmd.exe

description	pid	process	target process
PID 3492 wrote to memory of 2288	3492	2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c.exe	build.exe
PID 3492 wrote to memory of 2288	3492	2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c.exe	build.exe
PID 3492 wrote to memory of 2288	3492	2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c.exe	build.exe
PID 2288 wrote to memory of 4076	2288	build.exe	cmd.exe
PID 2288 wrote to memory of 4076	2288	build.exe	cmd.exe
PID 2288 wrote to memory of 4076	2288	build.exe	cmd.exe
PID 4076 wrote to memory of 3640	4076	cmd.exe	taskkill.exe
PID 4076 wrote to memory of 3640	4076	cmd.exe	taskkill.exe
PID 4076 wrote to memory of 3640	4076	cmd.exe	taskkill.exe
PID 4076 wrote to memory of 3400	4076	cmd.exe	timeout.exe
PID 4076 wrote to memory of 3400	4076	cmd.exe	timeout.exe
PID 4076 wrote to memory of 3400	4076	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c.exe
"C:\Users\Admin\AppData\Local\Temp\2c9c18cd54e6e08db64b4b5e3f511624287c2ac2ac7d65693a1767424a871d1c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3492

C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2288

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im build.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\build.exe" & del C:\ProgramData\*.dll & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:4076

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build.exe /f
4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3640

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
4⤵
- Delays execution with timeout.exe
PID:3400

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

C:\Users\Admin\AppData\Local\Temp\build.exe
MD5
4ed87cf32aabfb9ed554a78a30ec9254

SHA1
da64fd6f567e5ae9ef2c68b20d49d932b3202da1

SHA256
30cf3e3f768842e0590dbcbf2d3a97af91c660fe811087f05df3225c04128ce4

SHA512
49a00872d51b0fecbfc12959b058fea6c1e3dca14387108fcf97b1b0ebd5f36bccf9996fb8cd5391181d1a799f86a6ef082a44f60e5df1ecb64ffc6798160e8b

Download Submit
C:\Users\Admin\AppData\Local\Temp\build.exe
MD5
4ed87cf32aabfb9ed554a78a30ec9254

SHA1
da64fd6f567e5ae9ef2c68b20d49d932b3202da1

SHA256
30cf3e3f768842e0590dbcbf2d3a97af91c660fe811087f05df3225c04128ce4

SHA512
49a00872d51b0fecbfc12959b058fea6c1e3dca14387108fcf97b1b0ebd5f36bccf9996fb8cd5391181d1a799f86a6ef082a44f60e5df1ecb64ffc6798160e8b

Download Submit
\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/2288-119-0x0000000000000000-mapping.dmp

Download
memory/3400-126-0x0000000000000000-mapping.dmp

Download
memory/3492-115-0x00000000009E0000-0x00000000009E1000-memory.dmp

Filesize
4KB

Download
memory/3492-117-0x000000001CA70000-0x000000001CBC0000-memory.dmp

Filesize
1.3MB

Download
memory/3492-118-0x0000000003690000-0x0000000003768000-memory.dmp

Filesize
864KB

Download
memory/3640-125-0x0000000000000000-mapping.dmp

Download
memory/4076-124-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads