Analysis
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max time kernel
141s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
26/05/2024, 03:21
Static task
static1
Behavioral task
behavioral1
Sample
d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe
Resource
win10v2004-20240508-en
General
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Target
d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe
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Size
79KB
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MD5
4a809b301f99ae7f3ca10cef1234f5a3
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SHA1
f9baabf18c6783afc0dc2a73096bf576447779f9
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SHA256
d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08
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SHA512
bdd06dcd9a63414d3e5bfc4833efebe63d8b0b589286b2a712043d4154ef0bdb3a8a4ccfa0e9f6d82d953f90e97875a88d09df402ea8cb8f790853468102c992
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SSDEEP
1536:bDcWLfIbgEp10gyX/dtnTHNWnnn622222t:bDXL0n0gyX/d1re2222t
Malware Config
Signatures
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Detects Windows executables referencing non-Windows User-Agents 4 IoCs
resource yara_rule behavioral1/memory/1484-0-0x0000000000400000-0x0000000000410000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/files/0x000a000000012280-3.dat INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/memory/1740-5-0x0000000000400000-0x0000000000410000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/memory/1740-6-0x0000000000400000-0x0000000000410000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 1240 attrib.exe -
Deletes itself 1 IoCs
pid Process 3012 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 1740 rwmhost.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\Debug\rwmhost.exe d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe File opened for modification C:\Windows\Debug\rwmhost.exe attrib.exe File created C:\Windows\Debug\rwmhost.exe d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rwmhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz rwmhost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1484 wrote to memory of 1240 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe 28 PID 1484 wrote to memory of 1240 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe 28 PID 1484 wrote to memory of 1240 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe 28 PID 1484 wrote to memory of 1240 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe 28 PID 1484 wrote to memory of 3012 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe 31 PID 1484 wrote to memory of 3012 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe 31 PID 1484 wrote to memory of 3012 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe 31 PID 1484 wrote to memory of 3012 1484 d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe 31 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 1240 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe"C:\Users\Admin\AppData\Local\Temp\d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe"1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1484 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\rwmhost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:1240
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D2D573~1.EXE > nul2⤵
- Deletes itself
PID:3012
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C:\Windows\Debug\rwmhost.exeC:\Windows\Debug\rwmhost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1740
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
79KB
MD51c70e81c05fa5cd8d58328c0cde86f3c
SHA19ac39b5952bff9dcb8be688846fad8c062592247
SHA2568bfeaa3deddea5cf1e09eec1817d239666dd0ec61b9c97d94790bbef397aefe0
SHA5126cdc389a22d1efbc6002947c61d2eebc2c577ad196e87e65d5482d4a36741b4da60694ddef89eeceac5ec20d5b821853ba6c1873cbaceb3c5c205836d5bc3352