Analysis
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max time kernel
94s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-es -
submitted
23-06-2022 14:52
Static task
static1
Behavioral task
behavioral1
Sample
27.FICH_33O3LcBJBPsZDE6v.vbs
Resource
win7-20220414-es
Behavioral task
behavioral2
Sample
27.FICH_33O3LcBJBPsZDE6v.vbs
Resource
win10v2004-20220414-es
Behavioral task
behavioral3
Sample
_.exe
Resource
win7-20220414-es
General
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Target
_.exe
-
Size
325KB
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MD5
04704493bcdc4d0c1c9d0fd8ebf5afbc
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SHA1
95d64b037a8d0c5d8318a7c1429d89529ac5c766
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SHA256
28225c5622637cdaed8342e14560e8de7b53dd6ba145d973643fc4b5bdd67b75
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SHA512
ed06b9f7931326ff6923b65e95db45931b21995aa8b52eb26f578017e5b60bee7139251bc3fedc65fc7becb7e1d7d4dfdaa17361d01d8d36ebd770c9142c5c8d
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
setup-stub.exepid process 4612 setup-stub.exe -
Processes:
resource yara_rule behavioral4/memory/3984-130-0x0000000000400000-0x0000000000446000-memory.dmp upx behavioral4/memory/3984-147-0x0000000000400000-0x0000000000446000-memory.dmp upx -
Loads dropped DLL 11 IoCs
Processes:
setup-stub.exepid process 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe 4612 setup-stub.exe -
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 file in Program Files directory 6 IoCs
Processes:
setup-stub.exedescription ioc process File opened for modification C:\Program Files\Mozilla Firefox\nsd9031.tmp setup-stub.exe File opened for modification C:\Program Files\Mozilla Firefox\nss9041.tmp setup-stub.exe File opened for modification C:\Program Files\Mozilla Firefox\nsd9031.tmp\ setup-stub.exe File opened for modification C:\Program Files\Mozilla Firefox\nss9042.tmp setup-stub.exe File opened for modification C:\Program Files\Mozilla Firefox\nss9043.tmp setup-stub.exe File opened for modification C:\Program Files\Mozilla Firefox\nss9042.tmp\ setup-stub.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
setup-stub.exepid process 4612 setup-stub.exe 4612 setup-stub.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
_.exedescription pid process target process PID 3984 wrote to memory of 4612 3984 _.exe setup-stub.exe PID 3984 wrote to memory of 4612 3984 _.exe setup-stub.exe PID 3984 wrote to memory of 4612 3984 _.exe setup-stub.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\_.exe"C:\Users\Admin\AppData\Local\Temp\_.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zS09F546B6\setup-stub.exe.\setup-stub.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\7zS09F546B6\setup-stub.exeFilesize
464KB
MD532b1aed8cda8677b31c3cec33b982462
SHA15966299d342e5c0a123551c49f97324494cd48ea
SHA256d7840eea40a5a88af824f24473e95d0227e69c4439d6ea791d50cb94bf0cfb2a
SHA512b9b33072350eff2f90e8e5bb84af9c78592c39bebeb8abc5775eb4f2cf87de2873e42d2ed3124772ead4b18a5618bf4a519bf334de0d07f2e87f5862c55454c7
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C:\Users\Admin\AppData\Local\Temp\7zS09F546B6\setup-stub.exeFilesize
464KB
MD532b1aed8cda8677b31c3cec33b982462
SHA15966299d342e5c0a123551c49f97324494cd48ea
SHA256d7840eea40a5a88af824f24473e95d0227e69c4439d6ea791d50cb94bf0cfb2a
SHA512b9b33072350eff2f90e8e5bb84af9c78592c39bebeb8abc5775eb4f2cf87de2873e42d2ed3124772ead4b18a5618bf4a519bf334de0d07f2e87f5862c55454c7
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\CityHash.dllFilesize
43KB
MD5737379945745bb94f8a0dadcc18cad8d
SHA16a1f497b4dc007f5935b66ec83b00e5a394332c6
SHA256d3d7b3d7a7941d66c7f75257be90b12ac76f787af42cd58f019ce0280972598a
SHA512c4a43b3ca42483cbd117758791d4333ddf38fa45eb3377f7b71ce74ec6e4d8b5ef2bfbe48c249d4eaf57ab929f4301138e53c79e0fa4be94dcbcd69c8046bc22
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\CityHash.dllFilesize
43KB
MD5737379945745bb94f8a0dadcc18cad8d
SHA16a1f497b4dc007f5935b66ec83b00e5a394332c6
SHA256d3d7b3d7a7941d66c7f75257be90b12ac76f787af42cd58f019ce0280972598a
SHA512c4a43b3ca42483cbd117758791d4333ddf38fa45eb3377f7b71ce74ec6e4d8b5ef2bfbe48c249d4eaf57ab929f4301138e53c79e0fa4be94dcbcd69c8046bc22
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\InetBgDL.dllFilesize
7KB
MD5d4f7b4f9c296308e03a55cb0896a92fc
SHA163065bed300926a5b39eabf6efdf9296ed46e0cc
SHA2566b553f94ac133d8e70fac0fcaa01217fae24f85d134d3964c1beea278191cf83
SHA512d4acc719ae29c53845ccf4778e1d7ed67f30358af30545fc744facdb9f4e3b05d8cb7dc5e72c93895259e9882471c056395ab2e6f238310841b767d6acbcd6c1
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\System.dllFilesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\UAC.dllFilesize
18KB
MD5113c5f02686d865bc9e8332350274fd1
SHA14fa4414666f8091e327adb4d81a98a0d6e2e254a
SHA2560d21041a1b5cd9f9968fc1d457c78a802c9c5a23f375327e833501b65bcd095d
SHA512e190d1ee50c0b2446b14f0d9994a0ce58f5dbd2aa5d579f11b3a342da1d4abf0f833a0415d3817636b237930f314be54e4c85b4db4a9b4a3e532980ea9c91284
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\UAC.dllFilesize
18KB
MD5113c5f02686d865bc9e8332350274fd1
SHA14fa4414666f8091e327adb4d81a98a0d6e2e254a
SHA2560d21041a1b5cd9f9968fc1d457c78a802c9c5a23f375327e833501b65bcd095d
SHA512e190d1ee50c0b2446b14f0d9994a0ce58f5dbd2aa5d579f11b3a342da1d4abf0f833a0415d3817636b237930f314be54e4c85b4db4a9b4a3e532980ea9c91284
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\UserInfo.dllFilesize
4KB
MD51b446b36f5b4022d50ffdc0cf567b24a
SHA1d9a0a99fe5ea3932cbd2774af285ddf35fcdd4f9
SHA2562862c7bc7f11715cebdea003564a0d70bf42b73451e2b672110e1392ec392922
SHA51204ab80568f6da5eef2bae47056391a5de4ba6aff15cf4a2d0a9cc807816bf565161731921c65fe5ff748d2b86d1661f6aa4311c65992350bd63a9f092019f1b8
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\UserInfo.dllFilesize
4KB
MD51b446b36f5b4022d50ffdc0cf567b24a
SHA1d9a0a99fe5ea3932cbd2774af285ddf35fcdd4f9
SHA2562862c7bc7f11715cebdea003564a0d70bf42b73451e2b672110e1392ec392922
SHA51204ab80568f6da5eef2bae47056391a5de4ba6aff15cf4a2d0a9cc807816bf565161731921c65fe5ff748d2b86d1661f6aa4311c65992350bd63a9f092019f1b8
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\UserInfo.dllFilesize
4KB
MD51b446b36f5b4022d50ffdc0cf567b24a
SHA1d9a0a99fe5ea3932cbd2774af285ddf35fcdd4f9
SHA2562862c7bc7f11715cebdea003564a0d70bf42b73451e2b672110e1392ec392922
SHA51204ab80568f6da5eef2bae47056391a5de4ba6aff15cf4a2d0a9cc807816bf565161731921c65fe5ff748d2b86d1661f6aa4311c65992350bd63a9f092019f1b8
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\UserInfo.dllFilesize
4KB
MD51b446b36f5b4022d50ffdc0cf567b24a
SHA1d9a0a99fe5ea3932cbd2774af285ddf35fcdd4f9
SHA2562862c7bc7f11715cebdea003564a0d70bf42b73451e2b672110e1392ec392922
SHA51204ab80568f6da5eef2bae47056391a5de4ba6aff15cf4a2d0a9cc807816bf565161731921c65fe5ff748d2b86d1661f6aa4311c65992350bd63a9f092019f1b8
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C:\Users\Admin\AppData\Local\Temp\nsd8FE2.tmp\WebBrowser.dllFilesize
93KB
MD5dfe24aa39f009e9d98b20b7c9cc070b1
SHA1f48e4923c95466f689e8c5408265b52437ed2701
SHA2568ec65a3d8ae8a290a6066773e49387fd368f5697392dfb58eac1b63640e30444
SHA512665ce32d3776b1b41f95ed685054a796d0c1938dbc237619fa6309d1b52ae3bd44e3cf0a1f53ebf88556f7603111cca6dff1bfc917a911e0a9ce04affd0d5261
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memory/3984-130-0x0000000000400000-0x0000000000446000-memory.dmpFilesize
280KB
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memory/3984-147-0x0000000000400000-0x0000000000446000-memory.dmpFilesize
280KB
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memory/4612-137-0x00000000021B1000-0x00000000021B5000-memory.dmpFilesize
16KB
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memory/4612-144-0x00000000021B0000-0x00000000021B8000-memory.dmpFilesize
32KB
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memory/4612-131-0x0000000000000000-mapping.dmp