vidar | ad7e6c626cc86651b7d4dcc12d75852df91f669fb097eced45967fc8c7ae12a8

General

Target

file.exe
Size

2.4MB
MD5

ea3117221a3f32361ac11237b2ca1010
SHA1

ba7faca67a6e73446645cbcc55035671a1ded54e
SHA256

ad7e6c626cc86651b7d4dcc12d75852df91f669fb097eced45967fc8c7ae12a8
SHA512

444d98c77eefb1036c1ef62bab4175f7f7747c1eaef73c9777090b01fbb23afd5877eb4ab40d781d94a0dd4e3650ce652be57695fe46cb1f0a82f61dc36e58a3
SSDEEP

24576:69ZVG1gbHqxv/FGD9rHzoKh01Irki5ianp/JMOPdMQJjBTZTvMMsRi5I7dwpAc:Cso97zwqYqJv/t7vsuGwpAc

Score

10^/10

vidar bc730fff484789f7a109d0ff3ef71135 spyware stealer

Malware Config

Extracted

Family

vidar

Version

3.8

Botnet

bc730fff484789f7a109d0ff3ef71135

C2

https://steamcommunity.com/profiles/76561198272578552

https://t.me/libpcre

Attributes

profile_id_v2
bc730fff484789f7a109d0ff3ef71135
user_agent
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
928	InstallUtil.exe
928	InstallUtil.exe

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2008 set thread context of 928	2008	file.exe	28

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

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
928	InstallUtil.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28
PID 2008 wrote to memory of 928	2008	file.exe	28

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:928

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
62KB

MD5
3ac860860707baaf32469fa7cc7c0192

SHA1
c33c2acdaba0e6fa41fd2f00f186804722477639

SHA256
d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

SHA512
d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar4053.tmp

Filesize
164KB

MD5
4ff65ad929cd9a367680e0e5b1c08166

SHA1
c0af0d4396bd1f15c45f39d3b849ba444233b3a2

SHA256
c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

SHA512
f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/928-59-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/928-60-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/928-57-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/928-112-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/928-156-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/928-157-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/928-158-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2008-56-0x000000001B2F0000-0x000000001B3B0000-memory.dmp

Filesize
768KB

Download
memory/2008-54-0x0000000000C90000-0x0000000000EF0000-memory.dmp

Filesize
2.4MB

Download
memory/2008-55-0x000000001B3B0000-0x000000001B430000-memory.dmp

Filesize
512KB

Download

Analysis

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