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Analysis
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max time kernel
120s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
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submitted
16/08/2024, 15:39
General
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Target
zbi.exe
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Size
146KB
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MD5
6edfb62405f50d7fb16882ca9b16ed36
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SHA1
73c346267e9527ca5886bf8a90b77f9ebceb58fe
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SHA256
315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13
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SHA512
b3ea04a001c846af5d93435db055986a448fc5d01e86a9292937ce085609b653d41719111d2d031c8b6694eb01d5856e86f9e1a65e8cdc43af51a8ed3d370d2f
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SSDEEP
3072:PqJogYkcSNm9V7DGoNK696RTpfnEsCygHQlyT:Pq2kc4m9tDHNK6UlJ9CyN
Malware Config
Signatures
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Renames multiple (376) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 IoCs
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
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Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 12 IoCs
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Suspicious behavior: RenamesItself 26 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\zbi.exe"C:\Users\Admin\AppData\Local\Temp\zbi.exe"1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\ProgramData\C11D.tmp"C:\ProgramData\C11D.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\C11D.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1481⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
129B
MD597510cb9a84cf3629a002f8e8dfc2377
SHA17d851da288260ecce1d9d17e07c9bb59d4af4de4
SHA25659a4d6c6f610a7659682260c4e2d879d560dcdac168fa70f7fe58f7c04728a35
SHA5125668828862cfe05c981ea117f3cbf6a86ea2f6379dd52b8a7fb655bc433b54a306f0e3135666ebbeeaf25e374c7f0d5699b5778550f2a6e9d58a8667be7c7c78
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Filesize
146KB
MD5a6ad25f08b535f1d3594404f5dc71383
SHA1d40f14677bc9ee31dd7b207e93f53581d86dcfb9
SHA25639a293b01dd3f7688af3c3fe3a25d0d6ca87379870a8a5bb32de0cca93c9282b
SHA512c2dad59361ac83d06a03176c441b7b2c8c6621c38227ff19ed8287c9a745520e6deafa5dd4c18772b32e0715558e03f59e37860572c6d5a3a86800bc599af33b
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Filesize
597B
MD58b868d53629149c6b3a461ff64ce8cef
SHA1b8a0b57cfe78c6d8468bdd5ef52411765a456e41
SHA2565f8d2cdb81cac5d0b7df3bae0634042b305b4ac7ad06c728b21df0ea9628da25
SHA5122fbb224b435621bc8947caf5aa4e294725f7df1c79dfaae1674086c8e92fcdb106d734680ac58e02b112613c778b582b2eaa8e6979dc1d75dc1dccab54f7c337
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Filesize
129B
MD50bd7e0b51364fc3fd25eaeb8c5600956
SHA18ec72f9c8c1c59fc892889ec771cee6e668dfb1e
SHA256403ee33197fad7f1ba806224ecc10416a27a41cad1d33e90a230faff98eec3a0
SHA512b5ea3588ae93061cf24989d6bb301faeb4bb69bffe29048c344ba9d635afdcd0727f4f8863340c490ca67db8eedcad01b375d14c42102fc7126dc4793e35dada
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
256KB
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Filesize
4KB
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Filesize
256KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
256KB