vidar | 2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b

General

Target

2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe
Size

274KB
MD5

cedcd86d234896b7a4f145f0d0c2afc7
SHA1

4c4e420ba4c157bbf1b93f4822b242a2a9dd304a
SHA256

2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b
SHA512

eb70d3ccf6970256155ae533407a1d904092356272b9ebffead37fbf55a8530f07e19b5ab3990e3ab4ff8c5f82e4413eaed99e605d33a0a28878ff99d5c5ae75
SSDEEP

6144:tevsJRmJAvNCf3GIaWAlgO6dEkcsLOTvisCKsB:tgGRmJUSGYAt6dEkcVTvlsB

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

Detect Vidar Stealer 17 IoCs

stealer

resource	yara_rule
behavioral1/memory/1808-23-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-18-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-15-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-11-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-9-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-12-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-20-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-162-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-181-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-211-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-230-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-275-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-363-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-382-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-425-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-444-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1808-535-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1808	RegAsm.exe
1808	RegAsm.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3048 set thread context of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2468	timeout.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	RegAsm.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1808	RegAsm.exe
1808	RegAsm.exe
1808	RegAsm.exe
1808	RegAsm.exe
1808	RegAsm.exe
1808	RegAsm.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 3048 wrote to memory of 1808	3048	2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe	31
PID 1808 wrote to memory of 2196	1808	RegAsm.exe	35
PID 1808 wrote to memory of 2196	1808	RegAsm.exe	35
PID 1808 wrote to memory of 2196	1808	RegAsm.exe	35
PID 1808 wrote to memory of 2196	1808	RegAsm.exe	35
PID 2196 wrote to memory of 2468	2196	cmd.exe	37
PID 2196 wrote to memory of 2468	2196	cmd.exe	37
PID 2196 wrote to memory of 2468	2196	cmd.exe	37
PID 2196 wrote to memory of 2468	2196	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe
"C:\Users\Admin\AppData\Local\Temp\2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FIDGHIIECGHD" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2196
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

4

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabB711.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarB734.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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/1808-15-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-181-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-535-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-444-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1808-11-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-9-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-8-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-12-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-20-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-23-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-5-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-162-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-18-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-201-0x0000000020460000-0x00000000206BF000-memory.dmp

Filesize
2.4MB

Download
memory/1808-211-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1808-230-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

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memory/1808-425-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

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memory/1808-275-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

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memory/1808-3-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

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memory/1808-382-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

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memory/1808-363-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

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memory/3048-1-0x0000000000B00000-0x0000000000B4A000-memory.dmp

Filesize
296KB

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memory/3048-256-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

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memory/3048-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

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memory/3048-17-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

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