Analysis
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max time kernel
150s -
max time network
179s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03-12-2022 18:29
Behavioral task
behavioral1
Sample
fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe
Resource
win10v2004-20220812-en
General
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Target
fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe
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Size
860KB
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MD5
9151c34c96dd3a6486ec43b1b8372a93
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SHA1
be436a3167378f43f9c2be84bc52105ae2ff90e4
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SHA256
fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b
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SHA512
ec7ae9b8ce48567732673e3ff043f1d839ecef9dd6d1740fb996e3b5326c4673d0e799cca2cbc9c40ddc9fd6d1aae5cb1f16e426d09e3fd02b9b90040e074f5f
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SSDEEP
24576:uBaZdgmCHm37z+q/t5wkW4BvUhjMjddqe/:WaZamCHmrz+qFax4BvUNMjddz
Malware Config
Signatures
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resource yara_rule behavioral1/memory/1788-55-0x0000000000400000-0x00000000004D8000-memory.dmp aspack_v212_v242 behavioral1/files/0x000c0000000054a8-56.dat aspack_v212_v242 behavioral1/memory/1740-59-0x0000000000400000-0x00000000004D8000-memory.dmp aspack_v212_v242 behavioral1/memory/1740-60-0x0000000000400000-0x00000000004D8000-memory.dmp aspack_v212_v242 -
Executes dropped EXE 1 IoCs
pid Process 1740 pieirq.exe -
Deletes itself 1 IoCs
pid Process 1716 cmd.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\pieirq.exe fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe File opened for modification C:\Windows\SysWOW64\pieirq.exe fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1788 fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1788 wrote to memory of 1716 1788 fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe 29 PID 1788 wrote to memory of 1716 1788 fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe 29 PID 1788 wrote to memory of 1716 1788 fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe 29 PID 1788 wrote to memory of 1716 1788 fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe"C:\Users\Admin\AppData\Local\Temp\fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1788 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\FFF8C5~1.EXE > nul2⤵
- Deletes itself
PID:1716
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C:\Windows\SysWOW64\pieirq.exeC:\Windows\SysWOW64\pieirq.exe1⤵
- Executes dropped EXE
PID:1740
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
860KB
MD59151c34c96dd3a6486ec43b1b8372a93
SHA1be436a3167378f43f9c2be84bc52105ae2ff90e4
SHA256fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b
SHA512ec7ae9b8ce48567732673e3ff043f1d839ecef9dd6d1740fb996e3b5326c4673d0e799cca2cbc9c40ddc9fd6d1aae5cb1f16e426d09e3fd02b9b90040e074f5f