Malware Analysis Report

2024-11-30 02:45

Sample ID 240407-wgrzkaac6z
Target frf.rar
SHA256 4d8a9a4d5c6b2280c7fde5fe7bca2ec92ebb5dc10620c8070fefd28ade097991
Tags
redline discovery infostealer spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4d8a9a4d5c6b2280c7fde5fe7bca2ec92ebb5dc10620c8070fefd28ade097991

Threat Level: Known bad

The file frf.rar was found to be: Known bad.

Malicious Activity Summary

redline discovery infostealer spyware stealer

RedLine payload

RedLine

Executes dropped EXE

Reads user/profile data of web browsers

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Program crash

Enumerates physical storage devices

Modifies registry class

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Modifies system certificate store

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 17:53

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 17:53

Reported

2024-04-07 17:59

Platform

win11-20240214-en

Max time kernel

85s

Max time network

197s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\frf.rar

Signatures

RedLine

infostealer redline

RedLine payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe N/A
N/A N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe N/A

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3172 set thread context of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 set thread context of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2567984660-2719943099-2683635618-1000_Classes\Local Settings C:\Windows\system32\cmd.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\F1A578C4CB5DE79A370893983FD4DA8B67B2B064 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\F1A578C4CB5DE79A370893983FD4DA8B67B2B064\Blob = 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 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: 35 N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4948 wrote to memory of 3488 N/A C:\Windows\system32\cmd.exe C:\Program Files\7-Zip\7zFM.exe
PID 4948 wrote to memory of 3488 N/A C:\Windows\system32\cmd.exe C:\Program Files\7-Zip\7zFM.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3172 wrote to memory of 1256 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 448 wrote to memory of 4556 N/A C:\Users\Admin\Desktop\New folder\Brembo Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\frf.rar

C:\Program Files\7-Zip\7zFM.exe

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\frf.rar"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Users\Admin\Desktop\New folder\Brembo Loader.exe

"C:\Users\Admin\Desktop\New folder\Brembo Loader.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3172 -ip 3172

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3172 -s 828

C:\Users\Admin\Desktop\New folder\Brembo Loader.exe

"C:\Users\Admin\Desktop\New folder\Brembo Loader.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 448 -ip 448

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 800

Network

Country Destination Domain Proto
RU 147.45.44.50:15070 tcp
US 8.8.8.8:53 50.44.45.147.in-addr.arpa udp
RU 147.45.44.50:15070 tcp

Files

C:\Users\Admin\Desktop\New folder\Brembo Loader.exe

MD5 053f4312cef2c4b87dab159efedccb08
SHA1 75cf4286ee8131bcdd5857ffc6f97a765f5f7248
SHA256 a19ff1f1682f30e39769b199a30f00fbed768200b6fa367a1eee436c6d538354
SHA512 f47f5d9af72e7cc87df97788faad49b579cd0815f6e8082ca1ab73c62c45a89f188b0854a6b9bbd41e7eeeb33036ed94b022034509e1e275eb5380d59001fd78

memory/3172-22-0x00000000001B0000-0x0000000000268000-memory.dmp

memory/3172-23-0x0000000074EE0000-0x0000000075691000-memory.dmp

memory/1256-26-0x0000000000400000-0x00000000004B1000-memory.dmp

memory/1256-29-0x0000000000400000-0x00000000004B1000-memory.dmp

memory/1256-28-0x0000000000400000-0x00000000004B1000-memory.dmp

memory/3172-30-0x0000000002770000-0x0000000004770000-memory.dmp

memory/1256-32-0x0000000000400000-0x00000000004B1000-memory.dmp

memory/1256-33-0x00000000055F0000-0x0000000005682000-memory.dmp

memory/1256-34-0x0000000074EE0000-0x0000000075691000-memory.dmp

memory/1256-35-0x00000000056F0000-0x0000000005700000-memory.dmp

memory/1256-36-0x00000000056F0000-0x0000000005700000-memory.dmp

memory/1256-38-0x0000000005CB0000-0x0000000006256000-memory.dmp

memory/1256-37-0x00000000056F0000-0x0000000005700000-memory.dmp

memory/1256-39-0x0000000005700000-0x0000000005790000-memory.dmp

memory/1256-40-0x0000000005830000-0x00000000058C2000-memory.dmp

memory/1256-41-0x00000000057B0000-0x00000000057BA000-memory.dmp

memory/3172-42-0x0000000074EE0000-0x0000000075691000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Tmp1EFD.tmp

MD5 1420d30f964eac2c85b2ccfe968eebce
SHA1 bdf9a6876578a3e38079c4f8cf5d6c79687ad750
SHA256 f3327793e3fd1f3f9a93f58d033ed89ce832443e2695beca9f2b04adba049ed9
SHA512 6fcb6ce148e1e246d6805502d4914595957061946751656567a5013d96033dd1769a22a87c45821e7542cde533450e41182cee898cd2ccf911c91bc4822371a8

memory/1256-57-0x0000000008400000-0x0000000008476000-memory.dmp

memory/1256-58-0x0000000008AD0000-0x0000000008AEE000-memory.dmp

memory/1256-61-0x0000000009460000-0x0000000009A78000-memory.dmp

memory/1256-62-0x0000000009060000-0x000000000916A000-memory.dmp

memory/1256-63-0x0000000008F90000-0x0000000008FA2000-memory.dmp

memory/1256-64-0x0000000008FF0000-0x000000000902C000-memory.dmp

memory/1256-65-0x0000000009170000-0x00000000091BC000-memory.dmp

memory/1256-66-0x00000000092B0000-0x0000000009316000-memory.dmp

memory/1256-69-0x000000000AB30000-0x000000000ACF2000-memory.dmp

memory/1256-70-0x000000000B230000-0x000000000B75C000-memory.dmp

memory/1256-72-0x0000000074EE0000-0x0000000075691000-memory.dmp

memory/448-74-0x0000000074F80000-0x0000000075731000-memory.dmp

memory/4556-79-0x0000000000400000-0x00000000004B1000-memory.dmp

memory/448-80-0x0000000003240000-0x0000000005240000-memory.dmp

memory/4556-81-0x0000000000400000-0x00000000004B1000-memory.dmp

memory/4556-83-0x0000000000400000-0x00000000004B1000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegAsm.exe.log

MD5 18514361175f3afea0667587c0dad86c
SHA1 5d2f5a788f8747bfdfc87fe98387aa2f9bebb633
SHA256 d30dd2efb8bf06f2a61e8fcb8dbff8d021d4b7fc331c732e98ac25580cc0b14c
SHA512 76c4093685029b272ee1780dada3298f4fa0115a684925aaa2180b031c6f38182d8bcd1b483801eb972e6251b39879ff1070d17266dd6cfef7ec26ca1de04d51

memory/4556-85-0x0000000074F80000-0x0000000075731000-memory.dmp

memory/4556-86-0x0000000005820000-0x0000000005830000-memory.dmp

memory/4556-88-0x0000000005820000-0x0000000005830000-memory.dmp

memory/4556-87-0x0000000005820000-0x0000000005830000-memory.dmp

memory/448-90-0x0000000074F80000-0x0000000075731000-memory.dmp

memory/4556-89-0x0000000005820000-0x0000000005830000-memory.dmp

C:\Users\Admin\Desktop\Microsoft Edge.lnk

MD5 b3d38ae17baab7284b45c76aacf25309
SHA1 a7ca5c07f499fc2acb3b526efedcdc2a121fd291
SHA256 2b90d1c75f1e6da878540efa57cb263d303eada27c0d3c0bfe18df61745c5272
SHA512 9febabdf15638291240227751f04f6932e5aa7b72189dbca4d0eac5b721cdcd8eec50603caf4ef002756dcea459430116615bcd00a518649c16862cc34101f00

C:\Users\Public\Desktop\Google Chrome.lnk

MD5 6e6311a1b543dcda645469f117749a90
SHA1 c12d21a358c3d97eded0c1bb5d448d59c8a1878c
SHA256 cd697e72ae83162e18b3f37dd57768c2112d04d35f8431fef8c45faeffe66089
SHA512 8a7bf0fbafc4468563641808c5a037decf6c34eb1a6b46b6a509ee1bc79999e6d7f48b01d792b4e86f78edf3fe8f47beafa2470b7c6e3d1c264c42a33a89e05d

memory/4556-109-0x00000000093B0000-0x00000000093FC000-memory.dmp

memory/4556-112-0x0000000074F80000-0x0000000075731000-memory.dmp