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Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-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
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
Specifications.scr
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
Specifications.scr
Resource
win10v2004-20231222-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) 52 IoCs
resource yara_rule behavioral2/memory/3424-39-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-37-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-49-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-52-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-51-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-54-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-101-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-102-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-103-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-104-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-105-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-107-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-108-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-109-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-111-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-112-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-113-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-115-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-116-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-117-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-118-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-120-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-121-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-122-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-124-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-125-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-126-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-128-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-129-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-130-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-132-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-133-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-134-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-136-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-137-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-138-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-140-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-141-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-142-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-144-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-145-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-146-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-148-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-149-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-150-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-152-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-153-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-154-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-156-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-157-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-158-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/3424-160-0x0000000000400000-0x0000000000482000-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-1-5-21-1168293393-3419776239-306423207-1000\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 112 set thread context of 3424 112 Purchase Order-ListSamples_xls.scr 97 -
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 2144 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 112 Purchase Order-ListSamples_xls.scr 112 Purchase Order-ListSamples_xls.scr 112 Purchase Order-ListSamples_xls.scr 112 Purchase Order-ListSamples_xls.scr 112 Purchase Order-ListSamples_xls.scr 112 Purchase Order-ListSamples_xls.scr 112 Purchase Order-ListSamples_xls.scr 2600 powershell.exe 400 powershell.exe 112 Purchase Order-ListSamples_xls.scr 400 powershell.exe 2600 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 112 Purchase Order-ListSamples_xls.scr Token: SeDebugPrivilege 400 powershell.exe Token: SeDebugPrivilege 2600 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 112 wrote to memory of 400 112 Purchase Order-ListSamples_xls.scr 91 PID 112 wrote to memory of 400 112 Purchase Order-ListSamples_xls.scr 91 PID 112 wrote to memory of 400 112 Purchase Order-ListSamples_xls.scr 91 PID 112 wrote to memory of 2600 112 Purchase Order-ListSamples_xls.scr 96 PID 112 wrote to memory of 2600 112 Purchase Order-ListSamples_xls.scr 96 PID 112 wrote to memory of 2600 112 Purchase Order-ListSamples_xls.scr 96 PID 112 wrote to memory of 2144 112 Purchase Order-ListSamples_xls.scr 94 PID 112 wrote to memory of 2144 112 Purchase Order-ListSamples_xls.scr 94 PID 112 wrote to memory of 2144 112 Purchase Order-ListSamples_xls.scr 94 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97 PID 112 wrote to memory of 3424 112 Purchase Order-ListSamples_xls.scr 97
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:112 -
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:400
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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\tmpBC4B.tmp"2⤵
- Creates scheduled task(s)
PID:2144
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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:2600
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵PID:3424
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5494381b79410c2707bab7c026860c417
SHA10c1451a9a32d3d9ef6f6dcd91317a1951156c768
SHA256acd757e33199a07b593b9a36fceb547906be36feb272d5a0d015f825cb7f4635
SHA512107c58b30454bdfa46a9e7eb9eef8766544c3db89f1163c8c653bdf798fbdbeb2a2b626e8f918d6e3572688795787a06be64ee22f6c083f778e9bd642e85770e
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5ce0ec538b8ac8e1b016e92194056d2ac
SHA1aa7d50ba2cfcb59e78c71a9e0bcd0b6b188d351f
SHA256f85f0368637f92b6bfd25846b29c805be2362929c769c80452adbb3ccd03f153
SHA51275bb33649d637043f4a497f664b4064b9c971abeda0305f4b73ff67332fbb74901a4ba042d29ceffeb49e24d94ae654df920a47100f03c792552c082e9635e1a