Analysis
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max time kernel
148s -
max time network
171s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2022, 02:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
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Target
file.exe
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Size
3.6MB
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MD5
72e57067bba7f2dd820444e014a72f74
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SHA1
f277888b2aa0f705c75aaa2cb0d878685b4c5f1b
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SHA256
a967484db8184c2c461a45c4361b9d7c41efffe038a68fb57f152a1ac7dbcb34
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SHA512
b9e9a5c753ea05bb9d80fd00c62f129d9dd2d6e3fd68b3bd4720cb772a9b21a7db53e3f3a019186b28c164afe7903b48071ec83e3116e899815d3af54a429682
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SSDEEP
98304:MKMTD5G2dPXAvLOVUSNnJ6fbheN4IGj3YoP6XcyF:LM/PXSmUS/0bheyIoP6XcyF
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4788 is-P0J1B.tmp 2768 PrintFolders.exe 5016 I0CuQYU9YMBY.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation PrintFolders.exe -
Loads dropped DLL 1 IoCs
pid Process 4788 is-P0J1B.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 created C:\Program Files (x86)\PrintFolders\is-2PUM3.tmp is-P0J1B.tmp File created C:\Program Files (x86)\PrintFolders\is-167DM.tmp is-P0J1B.tmp File created C:\Program Files (x86)\PrintFolders\is-SPNPQ.tmp is-P0J1B.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-P0J1B.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-P0J1B.tmp File created C:\Program Files (x86)\PrintFolders\unins000.dat is-P0J1B.tmp File created C:\Program Files (x86)\PrintFolders\is-A6NLE.tmp is-P0J1B.tmp File created C:\Program Files (x86)\PrintFolders\is-7SN8T.tmp is-P0J1B.tmp File created C:\Program Files (x86)\PrintFolders\is-GO3B6.tmp is-P0J1B.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 4588 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2768 PrintFolders.exe 2768 PrintFolders.exe 2768 PrintFolders.exe 2768 PrintFolders.exe 2768 PrintFolders.exe 2768 PrintFolders.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2768 PrintFolders.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4588 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4812 wrote to memory of 4788 4812 file.exe 82 PID 4812 wrote to memory of 4788 4812 file.exe 82 PID 4812 wrote to memory of 4788 4812 file.exe 82 PID 4788 wrote to memory of 2768 4788 is-P0J1B.tmp 83 PID 4788 wrote to memory of 2768 4788 is-P0J1B.tmp 83 PID 4788 wrote to memory of 2768 4788 is-P0J1B.tmp 83 PID 2768 wrote to memory of 5016 2768 PrintFolders.exe 84 PID 2768 wrote to memory of 5016 2768 PrintFolders.exe 84 PID 2768 wrote to memory of 5016 2768 PrintFolders.exe 84 PID 2768 wrote to memory of 5068 2768 PrintFolders.exe 86 PID 2768 wrote to memory of 5068 2768 PrintFolders.exe 86 PID 2768 wrote to memory of 5068 2768 PrintFolders.exe 86 PID 5068 wrote to memory of 4588 5068 cmd.exe 88 PID 5068 wrote to memory of 4588 5068 cmd.exe 88 PID 5068 wrote to memory of 4588 5068 cmd.exe 88
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:4812 -
C:\Users\Admin\AppData\Local\Temp\is-2MPH4.tmp\is-P0J1B.tmp"C:\Users\Admin\AppData\Local\Temp\is-2MPH4.tmp\is-P0J1B.tmp" /SL4 $B0050 "C:\Users\Admin\AppData\Local\Temp\file.exe" 3515029 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4788 -
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 behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2768 -
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\I0CuQYU9YMBY.exe4⤵
- Executes dropped EXE
PID:5016
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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:5068 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "PrintFolders.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4588
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
5.9MB
MD5a6267ab7fb3a7ae591989034331a9058
SHA189163679df875d8dab9a225a4f59d47b0a489b16
SHA2566e4eb545da464d63dada1673b5eb9c2de6dfd649617ce8b88f5e932329a39790
SHA512fdfbf040afe3f6a1a01f1e30449a77ad99cf522ef9b84382d4a1ae2dce4942cae5b91f38f430d14fef0519111f063c22d814003a3e520416adbfb1ba8ef03610
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Filesize
5.9MB
MD5a6267ab7fb3a7ae591989034331a9058
SHA189163679df875d8dab9a225a4f59d47b0a489b16
SHA2566e4eb545da464d63dada1673b5eb9c2de6dfd649617ce8b88f5e932329a39790
SHA512fdfbf040afe3f6a1a01f1e30449a77ad99cf522ef9b84382d4a1ae2dce4942cae5b91f38f430d14fef0519111f063c22d814003a3e520416adbfb1ba8ef03610
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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
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c