Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
04-07-2024 22:47
Static task
static1
Behavioral task
behavioral1
Sample
ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe
Resource
win7-20240704-en
General
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Target
ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe
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Size
5.9MB
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MD5
048aee0544f6faf502419b571a053980
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SHA1
047c0fb760c3af3b0a1e741bd808858090dd70bf
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SHA256
ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f
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SHA512
4fa292dade05bfc568ba6a39f129bdf88e59486faadebd64f2488fac79893c49b95c1bd7a606afae5e2add7cfece62554aa6d0e5ebd9f4eb75ba20dd462e8940
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SSDEEP
98304:jYBYLosS6pvT7gIit3r648uaK9hobG/c70C0LRaFS:cBYLNS6pvT76t3r6bJK9hobZEVp
Malware Config
Extracted
vidar
https://t.me/bu77un
https://steamcommunity.com/profiles/76561199730044335
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1
Signatures
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Detect Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2652-79-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2652-549-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
FHIDAKFIJJ.exepid process 2104 FHIDAKFIJJ.exe -
Loads dropped DLL 6 IoCs
Processes:
MSBuild.exeWerFault.exepid process 2652 MSBuild.exe 2652 MSBuild.exe 2652 MSBuild.exe 892 WerFault.exe 892 WerFault.exe 892 WerFault.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exedescription pid process target process PID 1480 set thread context of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 892 2104 WerFault.exe FHIDAKFIJJ.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MSBuild.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1720 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
MSBuild.exepid process 2652 MSBuild.exe 2652 MSBuild.exe 2652 MSBuild.exe 2652 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exedescription pid process Token: SeDebugPrivilege 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exeMSBuild.exeFHIDAKFIJJ.execmd.exedescription pid process target process PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 1480 wrote to memory of 2652 1480 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe MSBuild.exe PID 2652 wrote to memory of 2104 2652 MSBuild.exe FHIDAKFIJJ.exe PID 2652 wrote to memory of 2104 2652 MSBuild.exe FHIDAKFIJJ.exe PID 2652 wrote to memory of 2104 2652 MSBuild.exe FHIDAKFIJJ.exe PID 2652 wrote to memory of 2104 2652 MSBuild.exe FHIDAKFIJJ.exe PID 2104 wrote to memory of 892 2104 FHIDAKFIJJ.exe WerFault.exe PID 2104 wrote to memory of 892 2104 FHIDAKFIJJ.exe WerFault.exe PID 2104 wrote to memory of 892 2104 FHIDAKFIJJ.exe WerFault.exe PID 2104 wrote to memory of 892 2104 FHIDAKFIJJ.exe WerFault.exe PID 2652 wrote to memory of 1756 2652 MSBuild.exe cmd.exe PID 2652 wrote to memory of 1756 2652 MSBuild.exe cmd.exe PID 2652 wrote to memory of 1756 2652 MSBuild.exe cmd.exe PID 2652 wrote to memory of 1756 2652 MSBuild.exe cmd.exe PID 1756 wrote to memory of 1720 1756 cmd.exe timeout.exe PID 1756 wrote to memory of 1720 1756 cmd.exe timeout.exe PID 1756 wrote to memory of 1720 1756 cmd.exe timeout.exe PID 1756 wrote to memory of 1720 1756 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe"C:\Users\Admin\AppData\Local\Temp\ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1480 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2652 -
C:\ProgramData\FHIDAKFIJJ.exe"C:\ProgramData\FHIDAKFIJJ.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2104 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 964⤵
- Loads dropped DLL
- Program crash
PID:892 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BKFCBFCBFBKE" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:1720
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
937KB
MD5168c5908924803d268d26965c32a5620
SHA19e0e2dc9c7e931c4ee860c32d83711c433f7b1a3
SHA2562fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449
SHA512749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD52963ce277266605bec3ee1fb6dfe8a66
SHA14d0fb38d3c0273490a35cdbc8b15a8fdd02864bf
SHA256ea579ab1018e83025727c9ab92c86688b96342da3d1745a77bbc1b9d9d3ef468
SHA512227a353eb5cb461f35b3afbb627685e64a73a2d9dde3289a6a2d2e5c3836d64cae89348d00bd1b6601538b98c3afe16c41dea72b64e6542217e9aae2635006ac
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b