Analysis
- max time kernel
142s - max time network
95s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
10/04/2024, 17:31
Behavioral task
behavioral1
Sample
eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe
Resource
win7-20240220-en
6 signatures
150 seconds
General
- Target eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe
- Size 179KB
- Sample240410-v35l4sfa52
- SHA256 7cd0473d322888be7a45e0cc92ac19d4f15612e59427d25b604a4b70134f4d6b
- MD5 eb9d77efd96bb4cdc26d1d46b8b178bc
- SHA1 d35fdf7eb94619aa612a1eff0e6c5cf4a0257f7a
- SHA512 2d3ff87e54a69d50aac531addb8a3a465c1b57d344fa300622a6f37e5142606cdd5f375bec1aa38588c591b797a09ce56eaf1c629c6276d041a9e410791ea1bd
- SSDEEP 3072:nyYN8jjx1Gj69kHUzZQ1VDADULLkfKz05Tr8d1d2rTrXcFNzL0K8:nyw8jdMj6yHP6gATr8d1d2rkFh
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- 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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe -
resource yara_rule behavioral2/memory/4940-0-0x0000000000400000-0x000000000049A000-memory.dmp upx behavioral2/memory/4940-9-0x0000000000400000-0x000000000049A000-memory.dmp upx - Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0F596190-DEC2-4D19-AB43-50B54243923F} eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0F596190-DEC2-4D19-AB43-50B54243923F}\ eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe - Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\IGIOOCVNKJB eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe File created C:\Windows\windivx.dll eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe File opened for modification C:\Windows\windivx.dll eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4940 wrote to memory of 2172 4940 eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe 86 PID 4940 wrote to memory of 2172 4940 eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe 86 PID 4940 wrote to memory of 2172 4940 eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\eb9d77efd96bb4cdc26d1d46b8b178bc_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Installs/modifies Browser Helper Object
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4940 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s C:\Windows\windivx.dll2⤵PID:2172
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\IGIOOCVNKJB
- Size 243KB
- SHA256 96dc6f29eff3ffe625637bf02deb933876e19aa5b31fafe27663cfad14efbbcb
- MD5 e67ed3bf553ee0c03eee40ebf953e45a
- SHA1 e73738f940d64ba91dc0af2cfed35d30c17823d5
- SHA512 48249313c644cc198e2b69d6d2934abb6d33f6760bab8410858f0cf0a4df9f943bdd26c0353facd1c06c2e5af9564a48e548abc0c4a4c4255aebb7e33288b90c
- SSDEEP 3::
- MD5 SHA1 SHA512 SSDEEP