Analysis
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max time kernel
145s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 21:25
Static task
static1
Behavioral task
behavioral1
Sample
2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe
Resource
win7-20220812-en
General
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Target
2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe
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Size
2.2MB
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MD5
91ff9e6e9a719d76ec2f1ed07654d221
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SHA1
5b253032cce30bbf4a32a0238daaa5bd8fa05659
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SHA256
2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a
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SHA512
190ec0cb3fb5096603ec854c8b701259987da5db8ff369479b5918aa8ec1a52f1d20fd38a1207fd7fcd31ab3de3b2d8912773bb3a0170c03087b0545ddf8162d
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SSDEEP
49152:05VOtc5mv+TDsaB7Cj7e4j7a5SxT1SW7jDDegcA+lNFFrPAG5cyA:05VOtcbUakPe4j7OgToALGZXcyA
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 5084 is-I23KV.tmp 1972 PrintFolders.exe 764 YbwKg.exe -
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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation PrintFolders.exe -
Loads dropped DLL 1 IoCs
pid Process 5084 is-I23KV.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
description ioc Process File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-I23KV.tmp File created C:\Program Files (x86)\PrintFolders\is-AHQG4.tmp is-I23KV.tmp File created C:\Program Files (x86)\PrintFolders\is-34A48.tmp is-I23KV.tmp File created C:\Program Files (x86)\PrintFolders\is-1TID7.tmp is-I23KV.tmp File created C:\Program Files (x86)\PrintFolders\is-TJV2A.tmp is-I23KV.tmp File created C:\Program Files (x86)\PrintFolders\is-0CML1.tmp is-I23KV.tmp File created C:\Program Files (x86)\PrintFolders\unins000.dat is-I23KV.tmp File created C:\Program Files (x86)\PrintFolders\is-BAAR4.tmp is-I23KV.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-I23KV.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
pid Process 1404 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1972 PrintFolders.exe 1972 PrintFolders.exe 1972 PrintFolders.exe 1972 PrintFolders.exe 1972 PrintFolders.exe 1972 PrintFolders.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1404 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2484 wrote to memory of 5084 2484 2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe 76 PID 2484 wrote to memory of 5084 2484 2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe 76 PID 2484 wrote to memory of 5084 2484 2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe 76 PID 5084 wrote to memory of 1972 5084 is-I23KV.tmp 77 PID 5084 wrote to memory of 1972 5084 is-I23KV.tmp 77 PID 5084 wrote to memory of 1972 5084 is-I23KV.tmp 77 PID 1972 wrote to memory of 764 1972 PrintFolders.exe 78 PID 1972 wrote to memory of 764 1972 PrintFolders.exe 78 PID 1972 wrote to memory of 764 1972 PrintFolders.exe 78 PID 1972 wrote to memory of 1772 1972 PrintFolders.exe 85 PID 1972 wrote to memory of 1772 1972 PrintFolders.exe 85 PID 1972 wrote to memory of 1772 1972 PrintFolders.exe 85 PID 1772 wrote to memory of 1404 1772 cmd.exe 87 PID 1772 wrote to memory of 1404 1772 cmd.exe 87 PID 1772 wrote to memory of 1404 1772 cmd.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe"C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2484 -
C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp"C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp" /SL4 $801BE "C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe" 2086200 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:5084 -
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:1972 -
C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\YbwKg.exe4⤵
- Executes dropped EXE
PID:764
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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:1772 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "PrintFolders.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1404
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.4MB
MD554283e5a16ea5d5a583a2717a66a1dc4
SHA139b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea
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Filesize
3.4MB
MD554283e5a16ea5d5a583a2717a66a1dc4
SHA139b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
643KB
MD5363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70
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Filesize
643KB
MD5363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c