Analysis
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max time kernel
72s -
max time network
62s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 01:13
Static task
static1
Behavioral task
behavioral1
Sample
apphost.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
apphost.exe
Resource
win10v2004-20220414-en
General
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Target
apphost.exe
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Size
603KB
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MD5
35329adc614b4afdf984585c386a6b16
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SHA1
3ce0b19b9f426fb8a1349d738d7d30fd0f8fa060
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SHA256
ca120f69f73a72abd0c7f05da2a653556a7abc29a793ea2ae06f4419f11313c9
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SHA512
94c8522e648bbed20139480748010601b0eb3bbbc387e1f5f3401dca28582cb248d7910b53ac91ccd66681b0a3647e5db0c6838c9c627def3e6628e20365e66d
Malware Config
Extracted
redline
2905 ostap
45.66.9.166:80
Signatures
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
Processes:
resource yara_rule behavioral1/memory/2040-57-0x00000000009B0000-0x00000000009B8000-memory.dmp coreentity -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1632-62-0x0000000000400000-0x0000000000430000-memory.dmp family_redline behavioral1/memory/1632-63-0x0000000000400000-0x0000000000430000-memory.dmp family_redline behavioral1/memory/1632-64-0x0000000000400000-0x0000000000430000-memory.dmp family_redline behavioral1/memory/1632-65-0x000000000042A5DE-mapping.dmp family_redline behavioral1/memory/1632-67-0x0000000000400000-0x0000000000430000-memory.dmp family_redline behavioral1/memory/1632-69-0x0000000000400000-0x0000000000430000-memory.dmp family_redline -
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral1/memory/2040-58-0x0000000002310000-0x0000000002346000-memory.dmp rezer0 -
Suspicious use of SetThreadContext 1 IoCs
Processes:
apphost.exedescription pid process target process PID 2040 set thread context of 1632 2040 apphost.exe RegSvcs.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1760 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
apphost.exeRegSvcs.exetaskkill.exedescription pid process Token: SeDebugPrivilege 2040 apphost.exe Token: SeDebugPrivilege 1632 RegSvcs.exe Token: SeDebugPrivilege 1760 taskkill.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
apphost.exeRegSvcs.execmd.exedescription pid process target process PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 2040 wrote to memory of 1632 2040 apphost.exe RegSvcs.exe PID 1632 wrote to memory of 976 1632 RegSvcs.exe cmd.exe PID 1632 wrote to memory of 976 1632 RegSvcs.exe cmd.exe PID 1632 wrote to memory of 976 1632 RegSvcs.exe cmd.exe PID 1632 wrote to memory of 976 1632 RegSvcs.exe cmd.exe PID 976 wrote to memory of 1760 976 cmd.exe taskkill.exe PID 976 wrote to memory of 1760 976 cmd.exe taskkill.exe PID 976 wrote to memory of 1760 976 cmd.exe taskkill.exe PID 976 wrote to memory of 1760 976 cmd.exe taskkill.exe PID 976 wrote to memory of 1648 976 cmd.exe choice.exe PID 976 wrote to memory of 1648 976 cmd.exe choice.exe PID 976 wrote to memory of 1648 976 cmd.exe choice.exe PID 976 wrote to memory of 1648 976 cmd.exe choice.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\apphost.exe"C:\Users\Admin\AppData\Local\Temp\apphost.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C taskkill /F /PID 1632 && choice /C Y /N /D Y /T 3 & Del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /F /PID 16324⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\choice.exechoice /C Y /N /D Y /T 34⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/976-71-0x0000000000000000-mapping.dmp
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memory/1632-69-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1632-64-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1632-67-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1632-65-0x000000000042A5DE-mapping.dmp
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memory/1632-59-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1632-60-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1632-62-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1632-63-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1648-73-0x0000000000000000-mapping.dmp
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memory/1760-72-0x0000000000000000-mapping.dmp
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memory/2040-56-0x0000000000E10000-0x0000000000E4E000-memory.dmpFilesize
248KB
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memory/2040-58-0x0000000002310000-0x0000000002346000-memory.dmpFilesize
216KB
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memory/2040-57-0x00000000009B0000-0x00000000009B8000-memory.dmpFilesize
32KB
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memory/2040-54-0x0000000000E70000-0x0000000000F0C000-memory.dmpFilesize
624KB
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memory/2040-55-0x0000000076261000-0x0000000076263000-memory.dmpFilesize
8KB