stealc | 865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 19:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe
Size

2.2MB
MD5

49eb890a7192a0a4b700710d8b88353b
SHA1

906a6fbad2ff7d94dfe5e4e79a16f194e2f04dfe
SHA256

865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86
SHA512

7dd889bc34d3465a17336f4fb3b350a6a50b36b7a20a65a97eba8974ea1dab445219a7507044c1e7c64dc0bcf77ecc98e547f1ffc44e0d276f14ad91ae619f3f
SSDEEP

24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXf7U2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MP421tuuIeNHYGY0LzjsJxK

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

vidar

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

Detect Vidar Stealer 10 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2944-2-0x0000000003480000-0x0000000003593000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-22-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-18-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-15-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-17-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-135-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-152-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-178-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2432-195-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

kat21F2.tmp

pid process

2432 kat21F2.tmp
Loads dropped DLL 2 IoCs

Processes:

865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe

pid process

2944 865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe
2944 865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.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
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

Processes:

865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe

description pid process target process

PID 2944 set thread context of 2432 2944 865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe kat21F2.tmp

pid	process
2432	kat21F2.tmp

pid	process
2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe
2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe

description	pid	process	target process
PID 2944 set thread context of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp

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:

kat21F2.tmp

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	kat21F2.tmp
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat21F2.tmp

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

kat21F2.tmp

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	kat21F2.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 0f0000000100000014000000e35ef08d884f0a0ade2f75e96301ce6230f213a8090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b060105050703085300000001000000230000003021301f06096086480186fd6c020130123010060a2b0601040182373c0101030200c0140000000100000014000000b13ec36903f8bf4701d498261a0802ef63642bc30b00000001000000120000004400690067006900430065007200740000001d00000001000000100000008f76b981d528ad4770088245e2031b630300000001000000140000005fb7ee0633e259dbad0c4c9ae6d38f1a61c7dc252000000001000000c9030000308203c5308202ada003020102021002ac5c266a0b409b8f0b79f2ae462577300d06092a864886f70d0101050500306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100c6cce573e6fbd4bbe52d2d32a6dfe5813fc9cd2549b6712ac3d5943467a20a1cb05f69a640b1c4b7b28fd098a4a941593ad3dc94d63cdb7438a44acc4d2582f74aa5531238eef3496d71917e63b6aba65fc3a484f84f6251bef8c5ecdb3892e306e508910cc4284155fbcb5a89157e71e835bf4d72093dbe3a38505b77311b8db3c724459aa7ac6d00145a04b7ba13eb510a984141224e656187814150a6795c89de194a57d52ee65d1c532c7e98cd1a0616a46873d03404135ca171d35a7c55db5e64e13787305604e511b4298012f1793988a202117c2766b788b778f2ca0aa838ab0a64c2bf665d9584c1a1251e875d1a500b2012cc41bb6e0b5138b84bcb0203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e04160414b13ec36903f8bf4701d498261a0802ef63642bc3301f0603551d23041830168014b13ec36903f8bf4701d498261a0802ef63642bc3300d06092a864886f70d010105050003820101001c1a0697dcd79c9f3c886606085721db2147f82a67aabf183276401057c18af37ad911658e35fa9efc45b59ed94c314bb891e8432c8eb378cedbe3537971d6e5219401da55879a2464f68a66ccde9c37cda834b1699b23c89e78222b7043e35547316119ef58c5852f4e30f6a0311623c8e7e2651633cbbf1a1ba03df8ca5e8b318b6008892d0c065c52b7c4f90a98d1155f9f12be7c366338bd44a47fe4262b0ac497690de98ce2c01057b8c876129155f24869d8bc2a025b0f44d42031dbf4ba70265d90609ebc4b17092fb4cb1e4368c90727c1d25cf7ea21b968129c3c9cbf9efc805c9b63cdec47aa252767a037f300827d54d7a9f8e92e13a377e81f4a	kat21F2.tmp

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat21F2.tmp

pid process

2432 kat21F2.tmp
2432 kat21F2.tmp

pid	process
2432	kat21F2.tmp
2432	kat21F2.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe

description	pid	process	target process
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp
PID 2944 wrote to memory of 2432	2944	865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe	kat21F2.tmp

C:\Users\Admin\AppData\Local\Temp\865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe
"C:\Users\Admin\AppData\Local\Temp\865f23d1e76abde3903d2c954598aa5fe6d9ed09969877e1722bd6053a186c86.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2944

C:\Users\Admin\AppData\Local\Temp\kat21F2.tmp
C:\Users\Admin\AppData\Local\Temp\kat21F2.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
PID:2432

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Cab3008.tmp
Filesize
67KB

MD5
2d3dcf90f6c99f47e7593ea250c9e749

SHA1
51be82be4a272669983313565b4940d4b1385237

SHA256
8714e7be9f9b6de26673d9d09bd4c9f41b1b27ae10b1d56a7ad83abd7430ebd4

SHA512
9c11dd7d448ffebe2167acde37be77d42175edacf5aaf6fb31d3bdfe6bb1f63f5fdbc9a0a2125ed9d5ce0529b6b548818c8021532e1ea6b324717cc9bec0aaa5

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar32DC.tmp
Filesize
160KB

MD5
7186ad693b8ad9444401bd9bcd2217c2

SHA1
5c28ca10a650f6026b0df4737078fa4197f3bac1

SHA256
9a71fa0cb44aa51412b16a0bf83a275977ba4e807d022f78364338b99b3a3eed

SHA512
135be0e6370fd057762c56149526f46bf6a62fb65ef5b3b26ae01fa07b4c4e37188e203bd3812f31e260ec5cccff5924633dd55ab17e9fa106479783c2fb212b

Download Submit
\Users\Admin\AppData\Local\Temp\kat21F2.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/2432-13-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-17-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-22-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-18-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-15-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-11-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-195-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-178-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-171-0x0000000025010000-0x000000002526F000-memory.dmp

Filesize
2.4MB

Download
memory/2432-135-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2432-152-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2944-2-0x0000000003480000-0x0000000003593000-memory.dmp

Filesize
1.1MB

Download
memory/2944-20-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2944-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download