Analysis
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max time kernel
117s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03-10-2022 04:37
Static task
static1
Behavioral task
behavioral1
Sample
chrom.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
chrom.exe
Resource
win10v2004-20220901-en
General
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Target
chrom.exe
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Size
3.9MB
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MD5
d60909eb4d445d948740877e759b7b83
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SHA1
dc8a672358fa25efbcefb5e4074aab7acdb413a6
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SHA256
2d241ce3d2981c29545a11c13ec0ecd7e021759d35dea0c762bb0c63bb1b555d
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SHA512
d10292ff78b4e14569d8b96170d0da905b1beb45a1bd76ff7fe7d43b5b72ef079bae7ce68c01759f46b5fb4fc60d367c1cc78fbc676b3adca947f45f58c18242
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SSDEEP
98304:FvJ7zh1f+X5wDg+kkq/0j+TdWRRsuwaxhYDU4PQv2Vph2XpR:RPl+XWkkqMaTdWb0aDv2VpC
Malware Config
Extracted
redline
Crypt_Mastif
194.36.177.60:81
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auth_value
26018289184445b16046125f5e616df6
Signatures
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/5112-143-0x0000000000400000-0x0000000000428000-memory.dmp family_redline -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
chrom.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation chrom.exe -
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 1 IoCs
Processes:
chrom.exedescription pid process target process PID 1476 set thread context of 5112 1476 chrom.exe chrom.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exechrom.exepid process 228 powershell.exe 228 powershell.exe 5112 chrom.exe 5112 chrom.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exechrom.exechrom.exedescription pid process Token: SeDebugPrivilege 228 powershell.exe Token: SeDebugPrivilege 1476 chrom.exe Token: SeDebugPrivilege 5112 chrom.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
chrom.exedescription pid process target process PID 1476 wrote to memory of 228 1476 chrom.exe powershell.exe PID 1476 wrote to memory of 228 1476 chrom.exe powershell.exe PID 1476 wrote to memory of 228 1476 chrom.exe powershell.exe PID 1476 wrote to memory of 5112 1476 chrom.exe chrom.exe PID 1476 wrote to memory of 5112 1476 chrom.exe chrom.exe PID 1476 wrote to memory of 5112 1476 chrom.exe chrom.exe PID 1476 wrote to memory of 5112 1476 chrom.exe chrom.exe PID 1476 wrote to memory of 5112 1476 chrom.exe chrom.exe PID 1476 wrote to memory of 5112 1476 chrom.exe chrom.exe PID 1476 wrote to memory of 5112 1476 chrom.exe chrom.exe PID 1476 wrote to memory of 5112 1476 chrom.exe chrom.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\chrom.exe"C:\Users\Admin\AppData\Local\Temp\chrom.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\chrom.exeC:\Users\Admin\AppData\Local\Temp\chrom.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\chrom.exe.logFilesize
1KB
MD57e88081fcf716d85992bb3af3d9b6454
SHA12153780fbc71061b0102a7a7b665349e1013e250
SHA2565ffb4a3ea94a6a53c4f88e2191c6fec5fd8a7336e367aa113fe8c12631e0c4d2
SHA512ec606e14367ae221c04f213a61a6f797034495121198e4788e3afa4aa8db67bf59c5c5210a56afae5557158e8923b013b371b84c7d64303618c5b4c57a2224f7
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memory/228-134-0x0000000000000000-mapping.dmp
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memory/228-135-0x0000000004F90000-0x0000000004FC6000-memory.dmpFilesize
216KB
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memory/228-136-0x0000000005600000-0x0000000005C28000-memory.dmpFilesize
6.2MB
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memory/228-137-0x0000000005D30000-0x0000000005D96000-memory.dmpFilesize
408KB
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memory/228-138-0x0000000005ED0000-0x0000000005F36000-memory.dmpFilesize
408KB
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memory/228-139-0x0000000006520000-0x000000000653E000-memory.dmpFilesize
120KB
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memory/228-140-0x0000000007BA0000-0x000000000821A000-memory.dmpFilesize
6.5MB
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memory/228-141-0x0000000006A30000-0x0000000006A4A000-memory.dmpFilesize
104KB
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memory/1476-133-0x0000000009740000-0x0000000009762000-memory.dmpFilesize
136KB
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memory/1476-132-0x0000000000D20000-0x0000000001106000-memory.dmpFilesize
3.9MB
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memory/5112-142-0x0000000000000000-mapping.dmp
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memory/5112-143-0x0000000000400000-0x0000000000428000-memory.dmpFilesize
160KB
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memory/5112-145-0x0000000006040000-0x0000000006658000-memory.dmpFilesize
6.1MB
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memory/5112-146-0x0000000008D80000-0x0000000008E8A000-memory.dmpFilesize
1.0MB
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memory/5112-147-0x0000000005FE0000-0x0000000005FF2000-memory.dmpFilesize
72KB
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memory/5112-148-0x0000000008D30000-0x0000000008D6C000-memory.dmpFilesize
240KB
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memory/5112-149-0x000000000A180000-0x000000000A724000-memory.dmpFilesize
5.6MB
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memory/5112-150-0x0000000009C70000-0x0000000009D02000-memory.dmpFilesize
584KB
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memory/5112-151-0x000000000B4B0000-0x000000000B672000-memory.dmpFilesize
1.8MB
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memory/5112-152-0x000000000BBB0000-0x000000000C0DC000-memory.dmpFilesize
5.2MB
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memory/5112-153-0x000000000A7E0000-0x000000000A856000-memory.dmpFilesize
472KB
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memory/5112-154-0x000000000A860000-0x000000000A8B0000-memory.dmpFilesize
320KB