Analysis
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max time kernel
118s -
max time network
135s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
24-10-2021 05:34
Static task
static1
Behavioral task
behavioral1
Sample
Stumpers.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
Stumpers.exe
Resource
win10-en-20210920
General
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Target
Stumpers.exe
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Size
389KB
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MD5
600a6843f8c555c0d54de21596daf2f5
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SHA1
0cb686583dacfa4d6e5e7309ad323b02df723c16
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SHA256
a059841f9de1c6f01abf02a6f111f871185ff8cfcbfb8a841bb2401164960fe8
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SHA512
3bc3ec7ebd5847c88a706cc8fa0b2d741bd2b1ec59de92611e0207791f764e8b29e2f47c391e3827e56c020931e1643ecf1e59939e35111b52fe0c2293ca792f
Malware Config
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 3 IoCs
Processes:
resource yara_rule behavioral2/memory/1116-121-0x0000000000400000-0x0000000000420000-memory.dmp family_redline behavioral2/memory/1116-122-0x0000000000418D66-mapping.dmp family_redline behavioral2/memory/1116-132-0x0000000005440000-0x000000000593E000-memory.dmp family_redline -
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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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:
Stumpers.exedescription pid process target process PID 8 set thread context of 1116 8 Stumpers.exe Stumpers.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
Stumpers.exepid process 1116 Stumpers.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Stumpers.exedescription pid process Token: SeDebugPrivilege 1116 Stumpers.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Stumpers.exedescription pid process target process PID 8 wrote to memory of 1116 8 Stumpers.exe Stumpers.exe PID 8 wrote to memory of 1116 8 Stumpers.exe Stumpers.exe PID 8 wrote to memory of 1116 8 Stumpers.exe Stumpers.exe PID 8 wrote to memory of 1116 8 Stumpers.exe Stumpers.exe PID 8 wrote to memory of 1116 8 Stumpers.exe Stumpers.exe PID 8 wrote to memory of 1116 8 Stumpers.exe Stumpers.exe PID 8 wrote to memory of 1116 8 Stumpers.exe Stumpers.exe PID 8 wrote to memory of 1116 8 Stumpers.exe Stumpers.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Stumpers.exe"C:\Users\Admin\AppData\Local\Temp\Stumpers.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Stumpers.exeC:\Users\Admin\AppData\Local\Temp\Stumpers.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Stumpers.exe.logMD5
41fbed686f5700fc29aaccf83e8ba7fd
SHA15271bc29538f11e42a3b600c8dc727186e912456
SHA256df4e9d012687cdabd15e86bf37be15d6c822e1f50dde530a02468f0006586437
SHA512234b2235c1ced25810a4121c5eabcbf9f269e82c126a1adc363ee34478173f8b462e90eb53f5f11533641663350b90ec1e2360fd805b10c041fab12f4da7a034
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memory/8-115-0x0000000000640000-0x0000000000641000-memory.dmpFilesize
4KB
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memory/8-117-0x0000000004F20000-0x0000000004F21000-memory.dmpFilesize
4KB
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memory/8-118-0x0000000000D70000-0x0000000000D71000-memory.dmpFilesize
4KB
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memory/8-119-0x0000000005190000-0x0000000005191000-memory.dmpFilesize
4KB
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memory/8-120-0x00000000056A0000-0x00000000056A1000-memory.dmpFilesize
4KB
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memory/1116-127-0x0000000005560000-0x0000000005561000-memory.dmpFilesize
4KB
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memory/1116-126-0x0000000006450000-0x0000000006451000-memory.dmpFilesize
4KB
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memory/1116-122-0x0000000000418D66-mapping.dmp
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memory/1116-128-0x0000000005510000-0x0000000005511000-memory.dmpFilesize
4KB
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memory/1116-129-0x0000000005710000-0x0000000005711000-memory.dmpFilesize
4KB
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memory/1116-130-0x00000000061D0000-0x00000000061D1000-memory.dmpFilesize
4KB
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memory/1116-131-0x0000000006350000-0x0000000006351000-memory.dmpFilesize
4KB
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memory/1116-132-0x0000000005440000-0x000000000593E000-memory.dmpFilesize
5.0MB
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memory/1116-133-0x0000000007D10000-0x0000000007D11000-memory.dmpFilesize
4KB
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memory/1116-136-0x0000000008670000-0x0000000008671000-memory.dmpFilesize
4KB
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memory/1116-137-0x0000000008D70000-0x0000000008D71000-memory.dmpFilesize
4KB
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memory/1116-138-0x0000000008BD0000-0x0000000008BD1000-memory.dmpFilesize
4KB
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memory/1116-121-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB