Analysis
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max time kernel
94s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 09:18
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
General
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Target
file.exe
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Size
1.2MB
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MD5
af9c0f4e62760bb313f17a48bebb96b3
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SHA1
020b12ec8d427279ae9f003800c09b88bf69c8d9
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SHA256
fdf1b2a010a1cc29f04912a4b97c7393ced35c676e0ef0f0a4a9fc7465a59024
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SHA512
115e0b149c111f7d4d7adc42969c2743dcec1b90d56669faed5036c03f3732309ac7df2ef50786d2eb766646e303fd8c1d89cd6395cc59cc9761b0f7c8e3547a
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SSDEEP
24576:5iz6YAWngLg2h00wF70aDsalxVhoEME95fmg29lmNM+t2sJdYTxBFy8gZIY7eCLP:y6Qn3Y00wFoaDsalxVhPuB9lmhsmanFI
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
Processes:
is-33LGE.tmpPrintFolders.exe6PCeCXJQJbVU7.exepid process 684 is-33LGE.tmp 2080 PrintFolders.exe 4580 6PCeCXJQJbVU7.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
PrintFolders.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation PrintFolders.exe -
Loads dropped DLL 1 IoCs
Processes:
is-33LGE.tmppid process 684 is-33LGE.tmp -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 9 IoCs
Processes:
is-33LGE.tmpdescription ioc process File created C:\Program Files (x86)\PrintFolders\is-J43N1.tmp is-33LGE.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-33LGE.tmp File created C:\Program Files (x86)\PrintFolders\is-62UQ6.tmp is-33LGE.tmp File created C:\Program Files (x86)\PrintFolders\is-4C2DE.tmp is-33LGE.tmp File created C:\Program Files (x86)\PrintFolders\is-F99VQ.tmp is-33LGE.tmp File created C:\Program Files (x86)\PrintFolders\is-BOFJC.tmp is-33LGE.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-33LGE.tmp File created C:\Program Files (x86)\PrintFolders\unins000.dat is-33LGE.tmp File created C:\Program Files (x86)\PrintFolders\is-86LLQ.tmp is-33LGE.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 3948 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
PrintFolders.exepid process 2080 PrintFolders.exe 2080 PrintFolders.exe 2080 PrintFolders.exe 2080 PrintFolders.exe 2080 PrintFolders.exe 2080 PrintFolders.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 3948 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exeis-33LGE.tmpPrintFolders.execmd.exedescription pid process target process PID 488 wrote to memory of 684 488 file.exe is-33LGE.tmp PID 488 wrote to memory of 684 488 file.exe is-33LGE.tmp PID 488 wrote to memory of 684 488 file.exe is-33LGE.tmp PID 684 wrote to memory of 2080 684 is-33LGE.tmp PrintFolders.exe PID 684 wrote to memory of 2080 684 is-33LGE.tmp PrintFolders.exe PID 684 wrote to memory of 2080 684 is-33LGE.tmp PrintFolders.exe PID 2080 wrote to memory of 4580 2080 PrintFolders.exe 6PCeCXJQJbVU7.exe PID 2080 wrote to memory of 4580 2080 PrintFolders.exe 6PCeCXJQJbVU7.exe PID 2080 wrote to memory of 4580 2080 PrintFolders.exe 6PCeCXJQJbVU7.exe PID 2080 wrote to memory of 1124 2080 PrintFolders.exe cmd.exe PID 2080 wrote to memory of 1124 2080 PrintFolders.exe cmd.exe PID 2080 wrote to memory of 1124 2080 PrintFolders.exe cmd.exe PID 1124 wrote to memory of 3948 1124 cmd.exe taskkill.exe PID 1124 wrote to memory of 3948 1124 cmd.exe taskkill.exe PID 1124 wrote to memory of 3948 1124 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:488 -
C:\Users\Admin\AppData\Local\Temp\is-9LU4D.tmp\is-33LGE.tmp"C:\Users\Admin\AppData\Local\Temp\is-9LU4D.tmp\is-33LGE.tmp" /SL4 $C0048 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1049087 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:684 -
C:\Program Files (x86)\PrintFolders\PrintFolders.exe"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\6PCeCXJQJbVU7.exe
- Executes dropped EXE
PID:4580 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "PrintFolders.exe" /f & erase "C:\Program Files (x86)\PrintFolders\PrintFolders.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "PrintFolders.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3948
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.4MB
MD549ee91c22537d68b8ae90e2214158503
SHA1109324af92e645ad251d0163432992c550bf04b4
SHA256e4eeefbd589c7e41e81e07e5ac62f27d8dc3d7cd5c9d4053697cef077242dd2e
SHA512e0b8a32c616260445ef7e44da67472bfe7f372942f4844d972b79c7e9ec50aa97017a8927f43511b03a16aef18687325073ba5699746ea34a161c5ac8c69ba19
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Filesize
1.4MB
MD549ee91c22537d68b8ae90e2214158503
SHA1109324af92e645ad251d0163432992c550bf04b4
SHA256e4eeefbd589c7e41e81e07e5ac62f27d8dc3d7cd5c9d4053697cef077242dd2e
SHA512e0b8a32c616260445ef7e44da67472bfe7f372942f4844d972b79c7e9ec50aa97017a8927f43511b03a16aef18687325073ba5699746ea34a161c5ac8c69ba19
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
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Filesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c