vidar | c136cc4b86cb9fcba40a5a0f9d0a33f5dfdb47b79ccd485e8366d90af029af10

General

Target

random.exe
Size

345KB
MD5

b4b23395474eed4df3b8113d90fdf3f0
SHA1

25399a100848cdfc995b59bee8fec5d27b451bc6
SHA256

c136cc4b86cb9fcba40a5a0f9d0a33f5dfdb47b79ccd485e8366d90af029af10
SHA512

6e968a1910ce0c8542a3cd0e6715906b4a2f5bced3a90ab7e4e68478e8aec4bfc6435cc1db527bac5f262096476c3b971601b182ada09a7afdd37baf902ce659
SSDEEP

6144:Ee7/cRR+JQ8mjAnN3yf8Hwjq4LQvwKnNGBf5UkNEH9IuyyrYJu:EY6R+JQXjAnN3ykQO4L14Y6wmOnyrYJ

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/sc1phell

https://steamcommunity.com/profiles/76561199819539662

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Signatures

Detect Vidar Stealer 7 IoCs

stealer

resource	yara_rule
behavioral1/memory/2776-13-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2776-8-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2776-9-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2776-7-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2776-14-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2776-16-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2776-114-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2124 set thread context of 2776	2124	random.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2852	2124	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 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	random.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	random.exe

Modifies system certificate store 2 TTPs 3 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	random.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 0f0000000100000014000000e35ef08d884f0a0ade2f75e96301ce6230f213a8090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b060105050703085300000001000000230000003021301f06096086480186fd6c020130123010060a2b0601040182373c0101030200c0140000000100000014000000b13ec36903f8bf4701d498261a0802ef63642bc30b00000001000000120000004400690067006900430065007200740000001d00000001000000100000008f76b981d528ad4770088245e2031b630300000001000000140000005fb7ee0633e259dbad0c4c9ae6d38f1a61c7dc252000000001000000c9030000308203c5308202ada003020102021002ac5c266a0b409b8f0b79f2ae462577300d06092a864886f70d0101050500306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100c6cce573e6fbd4bbe52d2d32a6dfe5813fc9cd2549b6712ac3d5943467a20a1cb05f69a640b1c4b7b28fd098a4a941593ad3dc94d63cdb7438a44acc4d2582f74aa5531238eef3496d71917e63b6aba65fc3a484f84f6251bef8c5ecdb3892e306e508910cc4284155fbcb5a89157e71e835bf4d72093dbe3a38505b77311b8db3c724459aa7ac6d00145a04b7ba13eb510a984141224e656187814150a6795c89de194a57d52ee65d1c532c7e98cd1a0616a46873d03404135ca171d35a7c55db5e64e13787305604e511b4298012f1793988a202117c2766b788b778f2ca0aa838ab0a64c2bf665d9584c1a1251e875d1a500b2012cc41bb6e0b5138b84bcb0203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e04160414b13ec36903f8bf4701d498261a0802ef63642bc3301f0603551d23041830168014b13ec36903f8bf4701d498261a0802ef63642bc3300d06092a864886f70d010105050003820101001c1a0697dcd79c9f3c886606085721db2147f82a67aabf183276401057c18af37ad911658e35fa9efc45b59ed94c314bb891e8432c8eb378cedbe3537971d6e5219401da55879a2464f68a66ccde9c37cda834b1699b23c89e78222b7043e35547316119ef58c5852f4e30f6a0311623c8e7e2651633cbbf1a1ba03df8ca5e8b318b6008892d0c065c52b7c4f90a98d1155f9f12be7c366338bd44a47fe4262b0ac497690de98ce2c01057b8c876129155f24869d8bc2a025b0f44d42031dbf4ba70265d90609ebc4b17092fb4cb1e4368c90727c1d25cf7ea21b968129c3c9cbf9efc805c9b63cdec47aa252767a037f300827d54d7a9f8e92e13a377e81f4a	random.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 190000000100000010000000ba4f3972e7aed9dccdc210db59da13c90300000001000000140000005fb7ee0633e259dbad0c4c9ae6d38f1a61c7dc251d00000001000000100000008f76b981d528ad4770088245e2031b630b0000000100000012000000440069006700690043006500720074000000140000000100000014000000b13ec36903f8bf4701d498261a0802ef63642bc35300000001000000230000003021301f06096086480186fd6c020130123010060a2b0601040182373c0101030200c0090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b060105050703080f0000000100000014000000e35ef08d884f0a0ade2f75e96301ce6230f213a82000000001000000c9030000308203c5308202ada003020102021002ac5c266a0b409b8f0b79f2ae462577300d06092a864886f70d0101050500306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100c6cce573e6fbd4bbe52d2d32a6dfe5813fc9cd2549b6712ac3d5943467a20a1cb05f69a640b1c4b7b28fd098a4a941593ad3dc94d63cdb7438a44acc4d2582f74aa5531238eef3496d71917e63b6aba65fc3a484f84f6251bef8c5ecdb3892e306e508910cc4284155fbcb5a89157e71e835bf4d72093dbe3a38505b77311b8db3c724459aa7ac6d00145a04b7ba13eb510a984141224e656187814150a6795c89de194a57d52ee65d1c532c7e98cd1a0616a46873d03404135ca171d35a7c55db5e64e13787305604e511b4298012f1793988a202117c2766b788b778f2ca0aa838ab0a64c2bf665d9584c1a1251e875d1a500b2012cc41bb6e0b5138b84bcb0203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e04160414b13ec36903f8bf4701d498261a0802ef63642bc3301f0603551d23041830168014b13ec36903f8bf4701d498261a0802ef63642bc3300d06092a864886f70d010105050003820101001c1a0697dcd79c9f3c886606085721db2147f82a67aabf183276401057c18af37ad911658e35fa9efc45b59ed94c314bb891e8432c8eb378cedbe3537971d6e5219401da55879a2464f68a66ccde9c37cda834b1699b23c89e78222b7043e35547316119ef58c5852f4e30f6a0311623c8e7e2651633cbbf1a1ba03df8ca5e8b318b6008892d0c065c52b7c4f90a98d1155f9f12be7c366338bd44a47fe4262b0ac497690de98ce2c01057b8c876129155f24869d8bc2a025b0f44d42031dbf4ba70265d90609ebc4b17092fb4cb1e4368c90727c1d25cf7ea21b968129c3c9cbf9efc805c9b63cdec47aa252767a037f300827d54d7a9f8e92e13a377e81f4a	random.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2776	2124	random.exe	31
PID 2124 wrote to memory of 2852	2124	random.exe	32
PID 2124 wrote to memory of 2852	2124	random.exe	32
PID 2124 wrote to memory of 2852	2124	random.exe	32
PID 2124 wrote to memory of 2852	2124	random.exe	32

C:\Users\Admin\AppData\Local\Temp\random.exe
"C:\Users\Admin\AppData\Local\Temp\random.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\random.exe
  "C:\Users\Admin\AppData\Local\Temp\random.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:2776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2124 -s 516
  2⤵
  - Program crash
  PID:2852

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

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
342B

MD5
dcf5f1a16ebf875544cd97befa1314ba

SHA1
c0ff9da1793b6dc0ad840c6a1c8478c9577e51ff

SHA256
1adae7d339db83c8d28efebbc2b7c40dafa0e78c000eade08d691201531ac459

SHA512
c6d3be8886008383698991793814c6ea23b710897fd9165316eaac5e408e2a81274bdfbf7f80e24deebf3ddf10f5cda25a37f4f51399988197507750c307366c

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF00C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarF02E.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2124-0-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/2124-1-0x00000000002A0000-0x00000000002FE000-memory.dmp

Filesize
376KB

Download
memory/2124-115-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/2124-15-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/2776-5-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-6-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-4-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-3-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-14-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-16-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-7-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-9-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-8-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-114-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2776-13-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

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