Analysis
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max time kernel
133s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
06-01-2025 06:53
Behavioral task
behavioral1
Sample
ITT # KRPBV2663 .doc
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ITT # KRPBV2663 .doc
Resource
win10v2004-20241007-en
General
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Target
ITT # KRPBV2663 .doc
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Size
51KB
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MD5
754c08a32cbfe16e0982b5b56835e247
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SHA1
7338cada263faae3d79631efa1c895bf690a4eb3
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SHA256
d9980559077d0cf6e251608efa44277ac5cd2b64236ecc31b352a93992e2f2b7
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SHA512
6cc3a3a351b58cb5763a745b07a492aaf944e1526a49c3f6da7135e6295a701e7f526c052fcf4961af7a08756f51226f5fbecb4e242d8fdde0f61fa1717772e1
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SSDEEP
384:Zp0xfMJvBv2xv8R89JMjN6m4iKpIEOqY+tKiSsqdg1vA9tzt/Mi+P0jN4pfZt8Fs:ZkUJJU6wVoJ+1o9t1MRi4pQmv+SWw
Malware Config
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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Modiloader family
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ModiLoader Second Stage 54 IoCs
resource yara_rule behavioral2/memory/4596-47-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-79-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-85-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-80-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-83-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-81-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-84-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-89-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-87-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-82-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-86-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-118-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-119-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-133-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-131-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-98-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-130-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-129-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-128-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-127-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-125-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-124-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-122-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-121-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-120-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-117-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-116-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-115-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-114-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-113-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-112-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-110-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-105-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-103-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-134-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-100-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-132-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-99-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-126-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-123-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-97-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-95-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-94-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-111-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-93-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-109-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-92-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-107-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-106-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-104-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-91-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-102-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-101-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 behavioral2/memory/4596-96-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 4596 brightness.exe 2224 jphwmyiA.pif -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Aiymwhpj = "C:\\Users\\Public\\Aiymwhpj.url" brightness.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4596 set thread context of 2224 4596 brightness.exe 96 -
Program crash 1 IoCs
pid pid_target Process procid_target 3156 2224 WerFault.exe 96 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language brightness.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 16 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 34 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 4724 WINWORD.EXE 4724 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 4724 WINWORD.EXE 4724 WINWORD.EXE 4724 WINWORD.EXE 4724 WINWORD.EXE 4724 WINWORD.EXE 4724 WINWORD.EXE 4724 WINWORD.EXE 4724 WINWORD.EXE 4724 WINWORD.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4724 wrote to memory of 4596 4724 WINWORD.EXE 86 PID 4724 wrote to memory of 4596 4724 WINWORD.EXE 86 PID 4724 wrote to memory of 4596 4724 WINWORD.EXE 86 PID 4596 wrote to memory of 4852 4596 brightness.exe 91 PID 4596 wrote to memory of 4852 4596 brightness.exe 91 PID 4596 wrote to memory of 4852 4596 brightness.exe 91 PID 4596 wrote to memory of 2224 4596 brightness.exe 96 PID 4596 wrote to memory of 2224 4596 brightness.exe 96 PID 4596 wrote to memory of 2224 4596 brightness.exe 96 PID 4596 wrote to memory of 2224 4596 brightness.exe 96 PID 4596 wrote to memory of 2224 4596 brightness.exe 96
Processes
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\ITT # KRPBV2663 .doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4724 -
C:\Users\Admin\AppData\Local\Temp\brightness.exeC:\Users\Admin\AppData\Local\Temp\brightness.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4596 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Users\Public\Libraries\FX.cmd3⤵
- System Location Discovery: System Language Discovery
PID:4852
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C:\Users\Public\Libraries\jphwmyiA.pifC:\Users\Public\Libraries\jphwmyiA.pif3⤵
- Executes dropped EXE
PID:2224 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2224 -s 124⤵
- Program crash
PID:3156
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2224 -ip 22241⤵PID:4160
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
262KB
MD551d32ee5bc7ab811041f799652d26e04
SHA1412193006aa3ef19e0a57e16acf86b830993024a
SHA2566230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97
SHA5125fc5d889b0c8e5ef464b76f0c4c9e61bda59b2d1205ac9417cc74d6e9f989fb73d78b4eb3044a1a1e1f2c00ce1ca1bd6d4d07eeadc4108c7b124867711c31810
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Filesize
1.1MB
MD56047499517804f1ea76b508ca469de99
SHA1ba5e8a683c8b8b54a14984d86715040d00777f11
SHA25603b17e6fe6ce874c0cf78b2e560f5fb4106e07ce33799632b2e1bbf24e9fb371
SHA512a617fd0131d75361d20423b0bc77b6ee65fe071fecf8a9fab7ea42be7f9716113468af15369981f7f652a39f6aa7a77250e2e02783549da2fcbc54d93821a76f
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
Filesize1KB
MD573243441c49f5e5e39adaf2c6a0aa660
SHA1536cb54755f6e4bf2f92cc6b3a3b1cc3ca7b126e
SHA25667df18df065c126ed70f56f169f180bc9faa619b38799d7f56526a7b4471ba1c
SHA5123642b1cbd51413bbee3e16218f0b2023033087685dd594b0f4043cdaef8884f5f32ca806a4a09129edc95836a20029b3c0592a557b47c22c91470b9e98176dfd
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Filesize
8KB
MD560cd0be570decd49e4798554639a05ae
SHA1bd7bed69d9ab9a20b5263d74921c453f38477bcb
SHA256ca6a6c849496453990beceef8c192d90908c0c615fa0a1d01bcd464bad6966a5
SHA512ab3dbdb4ed95a0cb4072b23dd241149f48ecff8a69f16d81648e825d9d81a55954e5dd9bc46d3d7408421df30c901b9ad1385d1e70793fa8d715c86c9e800c57
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Filesize
171KB
MD522331abcc9472cc9dc6f37faf333aa2c
SHA12a001c30ba79a19ceaf6a09c3567c70311760aa4
SHA256bdfa725ec2a2c8ea5861d9b4c2f608e631a183fca7916c1e07a28b656cc8ec0c
SHA512c7f5baad732424b975a426867d3d8b5424aa830aa172ed0ff0ef630070bf2b4213750e123a36d8c5a741e22d3999ca1d7e77c62d4b77d6295b20a38114b7843c