Analysis
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max time kernel
121s -
max time network
163s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
29-10-2021 03:17
Static task
static1
Behavioral task
behavioral1
Sample
PO_Contract_ANR07152112_20210715181907__110.exe
Resource
win7-en-20211014
windows7_x64
0 signatures
0 seconds
General
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Target
PO_Contract_ANR07152112_20210715181907__110.exe
-
Size
356KB
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MD5
25442e649bc504cedd9a5cfb51801c10
-
SHA1
ff7de7643c31a0392d8eb3f2c95deaad4610cf51
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SHA256
c18747e7433fe0aa7dc25dbac1b2788d5c0412ea5bbead7f395dbfe43a727470
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SHA512
36e510730374907d9d0dc000ba1ed39bc92f1df52c1b131606eb089c4c98d0159df73d4e651c7e08175a86661bddd21a5a37406aca98c712d8fbe474c6bad510
Malware Config
Extracted
Family
asyncrat
Version
0.5.7B
Botnet
Default
C2
185.222.57.71:00783
Mutex
AsyncMutex_6SI8OkPnk
Attributes
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anti_vm
false
-
bsod
false
-
delay
20
-
install
false
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install_folder
%AppData%
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pastebin_config
null
aes.plain
Signatures
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suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
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Async RAT payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2620-124-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat behavioral2/memory/2620-125-0x000000000040C70E-mapping.dmp asyncrat -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO_Contract_ANR07152112_20210715181907__110.exedescription pid process target process PID 3748 set thread context of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
PO_Contract_ANR07152112_20210715181907__110.exepid process 3748 PO_Contract_ANR07152112_20210715181907__110.exe 3748 PO_Contract_ANR07152112_20210715181907__110.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PO_Contract_ANR07152112_20210715181907__110.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 3748 PO_Contract_ANR07152112_20210715181907__110.exe Token: SeDebugPrivilege 2620 RegSvcs.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
PO_Contract_ANR07152112_20210715181907__110.exedescription pid process target process PID 3748 wrote to memory of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe PID 3748 wrote to memory of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe PID 3748 wrote to memory of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe PID 3748 wrote to memory of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe PID 3748 wrote to memory of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe PID 3748 wrote to memory of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe PID 3748 wrote to memory of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe PID 3748 wrote to memory of 2620 3748 PO_Contract_ANR07152112_20210715181907__110.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO_Contract_ANR07152112_20210715181907__110.exe"C:\Users\Admin\AppData\Local\Temp\PO_Contract_ANR07152112_20210715181907__110.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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memory/2620-124-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/2620-125-0x000000000040C70E-mapping.dmp
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memory/2620-128-0x00000000057A0000-0x00000000057A1000-memory.dmpFilesize
4KB
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memory/2620-131-0x0000000005FD0000-0x0000000005FD1000-memory.dmpFilesize
4KB
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memory/3748-115-0x0000000000770000-0x0000000000771000-memory.dmpFilesize
4KB
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memory/3748-117-0x00000000054E0000-0x00000000054E1000-memory.dmpFilesize
4KB
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memory/3748-118-0x0000000005080000-0x0000000005081000-memory.dmpFilesize
4KB
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memory/3748-119-0x0000000005010000-0x0000000005011000-memory.dmpFilesize
4KB
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memory/3748-120-0x0000000006F10000-0x0000000006F16000-memory.dmpFilesize
24KB
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memory/3748-121-0x0000000004FE0000-0x00000000054DE000-memory.dmpFilesize
5.0MB
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memory/3748-122-0x0000000007760000-0x0000000007761000-memory.dmpFilesize
4KB
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memory/3748-123-0x00000000071E0000-0x000000000720E000-memory.dmpFilesize
184KB