Analysis
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max time kernel
140s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
20/06/2024, 04:39
Static task
static1
Behavioral task
behavioral1
Sample
b2f5d04fc1d63f47ec7cdc2b326b7e83.exe
Resource
win7-20240508-en
General
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Target
b2f5d04fc1d63f47ec7cdc2b326b7e83.exe
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Size
439KB
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MD5
b2f5d04fc1d63f47ec7cdc2b326b7e83
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SHA1
7bf70f68204b0d905d18b1f94d86088f16a15d1f
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SHA256
b4ed59f2391034891fe8af87450a34eaca1518b400182554e392845f0d21e7a1
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SHA512
23ab37f544227a863c22ab4aaeb2a80986f5bd75e12a2a41f2cf4ddb0cba0fce20f7560dee6e65cad8f022a1cd616bab2c59722213803d12b699151dc2cfaa3a
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SSDEEP
6144:8gNhEV5pZ5BXmp4pEEEXI/ajDfJFb7uNmrkbBlpNezk3g7wZXlQkEDFGqymjv:8gjEV5pZ5hwTuNma8ow7glOsGjv
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/memve4erin
https://steamcommunity.com/profiles/76561199699680841
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 13 IoCs
resource yara_rule behavioral2/memory/3148-1-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-5-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-3-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-19-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-20-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-30-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-31-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-39-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-40-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-56-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-63-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-119-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3148-120-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 2 IoCs
resource yara_rule behavioral2/files/0x00070000000236ab-93.dat family_redline behavioral2/memory/828-102-0x0000000000E60000-0x0000000000EC2000-memory.dmp family_redline -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation RegAsm.exe -
Executes dropped EXE 3 IoCs
pid Process 688 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 2072 JDAFHCGIJE.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3016 set thread context of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 688 set thread context of 3336 688 FIIDBKJJDG.exe 107 PID 2072 set thread context of 3796 2072 JDAFHCGIJE.exe 114 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 3 IoCs
pid pid_target Process procid_target 1108 3016 WerFault.exe 89 4424 688 WerFault.exe 105 4568 2072 WerFault.exe 113 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4608 timeout.exe -
Suspicious behavior: EnumeratesProcesses 30 IoCs
pid Process 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 3148 RegAsm.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe 828 FIIDBKJJDG.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 828 FIIDBKJJDG.exe Token: SeBackupPrivilege 828 FIIDBKJJDG.exe Token: SeSecurityPrivilege 828 FIIDBKJJDG.exe Token: SeSecurityPrivilege 828 FIIDBKJJDG.exe Token: SeSecurityPrivilege 828 FIIDBKJJDG.exe Token: SeSecurityPrivilege 828 FIIDBKJJDG.exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3016 wrote to memory of 3148 3016 b2f5d04fc1d63f47ec7cdc2b326b7e83.exe 90 PID 3148 wrote to memory of 688 3148 RegAsm.exe 105 PID 3148 wrote to memory of 688 3148 RegAsm.exe 105 PID 3148 wrote to memory of 688 3148 RegAsm.exe 105 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 688 wrote to memory of 3336 688 FIIDBKJJDG.exe 107 PID 3148 wrote to memory of 828 3148 RegAsm.exe 110 PID 3148 wrote to memory of 828 3148 RegAsm.exe 110 PID 3148 wrote to memory of 828 3148 RegAsm.exe 110 PID 3148 wrote to memory of 2072 3148 RegAsm.exe 113 PID 3148 wrote to memory of 2072 3148 RegAsm.exe 113 PID 3148 wrote to memory of 2072 3148 RegAsm.exe 113 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 2072 wrote to memory of 3796 2072 JDAFHCGIJE.exe 114 PID 3148 wrote to memory of 4592 3148 RegAsm.exe 117 PID 3148 wrote to memory of 4592 3148 RegAsm.exe 117 PID 3148 wrote to memory of 4592 3148 RegAsm.exe 117 PID 4592 wrote to memory of 4608 4592 cmd.exe 119 PID 4592 wrote to memory of 4608 4592 cmd.exe 119 PID 4592 wrote to memory of 4608 4592 cmd.exe 119
Processes
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C:\Users\Admin\AppData\Local\Temp\b2f5d04fc1d63f47ec7cdc2b326b7e83.exe"C:\Users\Admin\AppData\Local\Temp\b2f5d04fc1d63f47ec7cdc2b326b7e83.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3016 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3148 -
C:\ProgramData\FIIDBKJJDG.exe"C:\ProgramData\FIIDBKJJDG.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:688 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:3336
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 688 -s 2524⤵
- Program crash
PID:4424
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C:\ProgramData\FIIDBKJJDG.exe"C:\ProgramData\FIIDBKJJDG.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:828
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C:\ProgramData\JDAFHCGIJE.exe"C:\ProgramData\JDAFHCGIJE.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:3796
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 2844⤵
- Program crash
PID:4568
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\IJEGDBGDBFIJ" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4592 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:4608
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 2522⤵
- Program crash
PID:1108
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3016 -ip 30161⤵PID:2816
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1720,i,18320353784098040629,17273168055569331828,262144 --variations-seed-version --mojo-platform-channel-handle=4436 /prefetch:81⤵PID:1056
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=3572,i,18320353784098040629,17273168055569331828,262144 --variations-seed-version --mojo-platform-channel-handle=3220 /prefetch:31⤵PID:224
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 688 -ip 6881⤵PID:972
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2072 -ip 20721⤵PID:3212
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.8MB
MD59f7d8785aa5e359848ebe4d771f3de8d
SHA170161505853a4cb3b2dc7eb690bde8b0f23b4d82
SHA2569cf43d480f6319717934b1a3f97682a4454c1742e2409aa416ba719e606c34ca
SHA512b26659c8e24baf0b489198eb28aafa4e29b5728432f522d22202fb5c3d288bd2e33aec88feca1d84b56d42f2dbb369ef517c37815f2c216bae4722bd5dd7700e
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Filesize
374KB
MD54adf8628310c11bc5929175855d16cb6
SHA110e2317fedbd27741212e89e0c2a1333bc775472
SHA2566f1f0ff69f7bf28a1116549249353fcbf944d8d559aaf9c3ecefddb08e341106
SHA512b3e5b61a6538fe9c14a40e9e144c0be6ea2b5b921d6f3158204a5ae408435191467a0d0054867199f4b0923d040d453f874ff1c004170aac57824171fe063734
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Filesize
525KB
MD5555259d9ac1f9da27667485bfc3ab9af
SHA159d61d0aa693f28ba68b0de8fd3b11dc206b76c4
SHA256fa4491dbe5eb3d35c9f5884d746235769999d536d30033f4cf38633ce2343ede
SHA512ee1e2b3ca43eff5384298c251f1f0b6184a8a892410f998e40202dbc1376da45a1af3643fd5f490c3cd3f1f5fd420759a121c892f969e016d2c0daf11209e45b
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Filesize
2B
MD5d751713988987e9331980363e24189ce
SHA197d170e1550eee4afc0af065b78cda302a97674c
SHA2564f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af
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Filesize
40B
MD520d4b8fa017a12a108c87f540836e250
SHA11ac617fac131262b6d3ce1f52f5907e31d5f6f00
SHA2566028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
SHA512507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856