Analysis
-
max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
13-11-2024 02:45
Static task
static1
Behavioral task
behavioral1
Sample
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
General
-
Target
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe
-
Size
699KB
-
MD5
63d2f97a6de92084873293a617e685db
-
SHA1
423997f0830a1f833d7c1e6b615ac84850b298a1
-
SHA256
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99
-
SHA512
2954eb36e39cbfa18c024dae9536d42b4f2eecf16bf3db623e0efc3f1a7ba02f9df4a1831abb4315b03b83c7497278b10f8001ea484cc31da8352f265f214743
-
SSDEEP
12288:E3cAEjow+kXtp28J4cGUhl+n0kbd6t21Rwm3+9rtQEFoxB50+tNADhZebeEkO/:E3cAEjow+kXf28J4cGeAn0Ttzm3EruEa
Malware Config
Extracted
remcos
ReBorn
gerfourt99lahjou2.duckdns.org:3487
gerfourt99lahjou2.duckdns.org:3488
gerfourt99lahjou3.duckdns.org:3487
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
true
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
ksaourts.dat
-
keylog_flag
false
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
ksajoutr-WG0CPT
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
- startup_value
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Remcos family
-
Loads dropped DLL 2 IoCs
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exepid Process 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Startup key = "C:\\Users\\Admin\\AppData\\Local\\Temp\\subfolder1\\Achroite.exe" a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exepid Process 2092 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exea754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exepid Process 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe 2092 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exedescription pid Process procid_target PID 3108 set thread context of 2092 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe 95 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exea754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exepid Process 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exepid Process 2092 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exedescription pid Process procid_target PID 3108 wrote to memory of 2092 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe 95 PID 3108 wrote to memory of 2092 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe 95 PID 3108 wrote to memory of 2092 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe 95 PID 3108 wrote to memory of 2092 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe 95 PID 3108 wrote to memory of 2092 3108 a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe 95
Processes
-
C:\Users\Admin\AppData\Local\Temp\a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe"C:\Users\Admin\AppData\Local\Temp\a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3108 -
C:\Users\Admin\AppData\Local\Temp\a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe"C:\Users\Admin\AppData\Local\Temp\a754c8899bf9ffc378d8fe239a58b0154bd9fc7cf8b2f2fdc1b1103885a70c99.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2092
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
30B
MD5f15bfdebb2df02d02c8491bde1b4e9bd
SHA193bd46f57c3316c27cad2605ddf81d6c0bde9301
SHA256c87f2ff45bb530577fb8856df1760edaf1060ae4ee2934b17fdd21b7d116f043
SHA5121757ed4ae4d47d0c839511c18be5d75796224d4a3049e2d8853650ace2c5057c42040de6450bf90dd4969862e9ebb420cd8a34f8dd9c970779ed2e5459e8f2f1
-
Filesize
12KB
MD512b140583e3273ee1f65016becea58c4
SHA192df24d11797fefd2e1f8d29be9dfd67c56c1ada
SHA256014f1dfeb842cf7265a3644bc6903c592abe9049bfc7396829172d3d72c4d042
SHA51249ffdfa1941361430b6acb3555fd3aa05e4120f28cbdf7ceaa2af5937d0b8cccd84471cf63f06f97cf203b4aa20f226bdad082e9421b8e6b62ab6e1e9fc1e68a
-
Filesize
1B
MD58ce4b16b22b58894aa86c421e8759df3
SHA113fbd79c3d390e5d6585a21e11ff5ec1970cff0c
SHA2568254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
SHA5122af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25
-
Filesize
2B
MD525bc6654798eb508fa0b6343212a74fe
SHA115d5e1d3b948fd5986aaff7d9419b5e52c75fc93
SHA2568e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
SHA5125868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898
-
Filesize
3B
MD54e27f2226785e9abbe046fc592668860
SHA128b18a7f383131df509f7191f946a32c5a2e410c
SHA25601a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
SHA5122a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb
-
Filesize
4B
MD5cde63b34c142af0a38cbe83791c964f8
SHA1ece2b194b486118b40ad12c1f0e9425dd0672424
SHA25665e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
SHA5120559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c
-
Filesize
5B
MD5e2fecc970546c3418917879fe354826c
SHA163f1c1dd01b87704a6b6c99fd9f141e0a3064f16
SHA256ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0
SHA5123c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a
-
Filesize
6B
MD550484c19f1afdaf3841a0d821ed393d2
SHA1c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
SHA2566923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
SHA512d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b
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Filesize
7B
MD567cfa7364c4cf265b047d87ff2e673ae
SHA156e27889277981a9b63fcf5b218744a125bbc2fa
SHA256639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
SHA51217f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b
-
Filesize
8B
MD5c3cb69218b85c3260387fb582cb518dd
SHA1961c892ded09a4cbb5392097bb845ccba65902ad
SHA2561c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
SHA5122402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422
-
Filesize
9B
MD52b3884fe02299c565e1c37ee7ef99293
SHA1d8e2ef2a52083f6df210109fea53860ea227af9c
SHA256ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
SHA512aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe
-
Filesize
10B
MD59a53fc1d7126c5e7c81bb5c15b15537b
SHA1e2d13e0fa37de4c98f30c728210d6afafbb2b000
SHA256a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
SHA512b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1