Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
13-02-2024 05:36
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order-ListSamples_xls.scr
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Purchase Order-ListSamples_xls.scr
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
Specifications.scr
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
Specifications.scr
Resource
win10v2004-20231215-en
General
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Target
Purchase Order-ListSamples_xls.scr
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Size
932KB
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MD5
acf1a5648f805a2e245c5ca3ed592298
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SHA1
c6f2fad033b2b6aa910a75c5cd3d94184406fde7
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SHA256
1351e61c2b4c13ccf8b28d7f1f9aa82f7cce424e723a30bacbfa404d1d98fa6d
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SHA512
5e28c34f7f1a46cf41af0d51c5fb941c811212a0c96f933e6f9464e143b27fef8412a63e0df0cd11894a7df171759284d22f9eb947921d0c9d5c0f7e330e7ea8
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SSDEEP
24576:OtK2xcQUuT2bpG4tDjoL4BjCtLPM3pP3j++VTZ:Os2xL2lG4Vg8KLP4P3jrZ
Malware Config
Extracted
remcos
RemoteHost
lora1.taiwantradeglobal.com:2404
lora2.taiwantradeglobal.com:2404
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-R9UMK0
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 50 IoCs
resource yara_rule behavioral2/memory/1016-54-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-33-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-26-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-25-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-97-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-98-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-99-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-100-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-101-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-103-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-104-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-105-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-107-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-108-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-109-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-110-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-112-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-113-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-114-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-116-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-117-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-118-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-120-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-121-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-122-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-124-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-125-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-126-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-128-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-129-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-130-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-132-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-133-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-134-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-136-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-137-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-138-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-140-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-141-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-142-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-144-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-145-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-146-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-148-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-149-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-150-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-152-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-153-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-154-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/1016-156-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation Purchase Order-ListSamples_xls.scr -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1636 set thread context of 1016 1636 Purchase Order-ListSamples_xls.scr 94 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2792 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 1636 Purchase Order-ListSamples_xls.scr 1636 Purchase Order-ListSamples_xls.scr 1636 Purchase Order-ListSamples_xls.scr 1636 Purchase Order-ListSamples_xls.scr 1636 Purchase Order-ListSamples_xls.scr 1636 Purchase Order-ListSamples_xls.scr 1636 Purchase Order-ListSamples_xls.scr 4984 powershell.exe 4136 powershell.exe 1636 Purchase Order-ListSamples_xls.scr 4136 powershell.exe 4984 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1636 Purchase Order-ListSamples_xls.scr Token: SeDebugPrivilege 4984 powershell.exe Token: SeDebugPrivilege 4136 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1636 wrote to memory of 4984 1636 Purchase Order-ListSamples_xls.scr 98 PID 1636 wrote to memory of 4984 1636 Purchase Order-ListSamples_xls.scr 98 PID 1636 wrote to memory of 4984 1636 Purchase Order-ListSamples_xls.scr 98 PID 1636 wrote to memory of 4136 1636 Purchase Order-ListSamples_xls.scr 97 PID 1636 wrote to memory of 4136 1636 Purchase Order-ListSamples_xls.scr 97 PID 1636 wrote to memory of 4136 1636 Purchase Order-ListSamples_xls.scr 97 PID 1636 wrote to memory of 2792 1636 Purchase Order-ListSamples_xls.scr 95 PID 1636 wrote to memory of 2792 1636 Purchase Order-ListSamples_xls.scr 95 PID 1636 wrote to memory of 2792 1636 Purchase Order-ListSamples_xls.scr 95 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94 PID 1636 wrote to memory of 1016 1636 Purchase Order-ListSamples_xls.scr 94
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order-ListSamples_xls.scr"C:\Users\Admin\AppData\Local\Temp\Purchase Order-ListSamples_xls.scr" /S1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵PID:1016
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LfCyGc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA875.tmp"2⤵
- Creates scheduled task(s)
PID:2792
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LfCyGc.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4136
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Purchase Order-ListSamples_xls.scr"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4984
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5931eba755b94d6be7e658e5dce513a91
SHA1bece661e13be05d9668e5ecb72563f194f8dc92a
SHA2564ea7112af7d21775a01d18b7adbd3179bbf1c5a043f762117e1ec9801616a785
SHA512e75fde5b002ef2a3edd0daaa750ba80fd951e1829dbc453f2ca562a9d8b3159aac32bc503f565638478c5c15911b3612abccf0727437054edd1aafa20137bc68