Analysis
-
max time kernel
196s -
max time network
240s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2022, 05:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
General
-
Target
file.exe
-
Size
3.6MB
-
MD5
69d78c4f8e7c8193dd0b64d64345002a
-
SHA1
5398b6bc6339cafc3735267d5cc48a7b02516c0f
-
SHA256
7a4c7fc6b9da63abb85452820d5cd5991c1bdf3b408d885bac3fcfefa696e639
-
SHA512
264d5e6272874409c5f0a340402528fe5ef154267246389f3886e77329a8fac5d2b383b540c81e059be6a2a615c9fd60c748243a00639c1cdd849f91c255042e
-
SSDEEP
98304:MKye+/FiIrDSv4NBpodtG29tgWlbvR+a58DP2Xcy9:Th+/kGrNIdA2Nv358T2Xcy9
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
-
Executes dropped EXE 3 IoCs
pid Process 2568 is-C8205.tmp 212 PrintFolders.exe 2288 DT3XVrakp.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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation PrintFolders.exe -
Loads dropped DLL 1 IoCs
pid Process 2568 is-C8205.tmp -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Drops file in Program Files directory 9 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-C8205.tmp File created C:\Program Files (x86)\PrintFolders\unins000.dat is-C8205.tmp File created C:\Program Files (x86)\PrintFolders\is-JAOEV.tmp is-C8205.tmp File created C:\Program Files (x86)\PrintFolders\is-OG240.tmp is-C8205.tmp File created C:\Program Files (x86)\PrintFolders\is-EDLNF.tmp is-C8205.tmp File created C:\Program Files (x86)\PrintFolders\is-R7HJO.tmp is-C8205.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-C8205.tmp File created C:\Program Files (x86)\PrintFolders\is-B4OR7.tmp is-C8205.tmp File created C:\Program Files (x86)\PrintFolders\is-6Q49V.tmp is-C8205.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Kills process with taskkill 1 IoCs
pid Process 5016 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 212 PrintFolders.exe 212 PrintFolders.exe 212 PrintFolders.exe 212 PrintFolders.exe 212 PrintFolders.exe 212 PrintFolders.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 212 PrintFolders.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5016 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 1472 wrote to memory of 2568 1472 file.exe 82 PID 1472 wrote to memory of 2568 1472 file.exe 82 PID 1472 wrote to memory of 2568 1472 file.exe 82 PID 2568 wrote to memory of 212 2568 is-C8205.tmp 83 PID 2568 wrote to memory of 212 2568 is-C8205.tmp 83 PID 2568 wrote to memory of 212 2568 is-C8205.tmp 83 PID 212 wrote to memory of 2288 212 PrintFolders.exe 84 PID 212 wrote to memory of 2288 212 PrintFolders.exe 84 PID 212 wrote to memory of 2288 212 PrintFolders.exe 84 PID 212 wrote to memory of 1372 212 PrintFolders.exe 89 PID 212 wrote to memory of 1372 212 PrintFolders.exe 89 PID 212 wrote to memory of 1372 212 PrintFolders.exe 89 PID 1372 wrote to memory of 5016 1372 cmd.exe 91 PID 1372 wrote to memory of 5016 1372 cmd.exe 91 PID 1372 wrote to memory of 5016 1372 cmd.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Users\Admin\AppData\Local\Temp\is-7JJF9.tmp\is-C8205.tmp"C:\Users\Admin\AppData\Local\Temp\is-7JJF9.tmp\is-C8205.tmp" /SL4 $A0054 "C:\Users\Admin\AppData\Local\Temp\file.exe" 3527583 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2568 -
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:212 -
C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\DT3XVrakp.exe4⤵
- Executes dropped EXE
PID:2288
-
-
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:1372 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "PrintFolders.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5016
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
6.0MB
MD5822029330cc83abea827fb68d0c57496
SHA1e256b82a3d8c3949ebf8dfa244ff6137dbb8fbaa
SHA256ce79b74e894366d6d979010a313e7afa6d65efbdd2cd9d2b44c6a12f731a53c6
SHA512e0d127a90bcadeafa6d8aa6d1acae5e008c2267100a320c7e1dbb3e90d8a582550bb623c69024a49377f436238288efb79de9a77a520dcb02391f8879cd24884
-
Filesize
6.0MB
MD5822029330cc83abea827fb68d0c57496
SHA1e256b82a3d8c3949ebf8dfa244ff6137dbb8fbaa
SHA256ce79b74e894366d6d979010a313e7afa6d65efbdd2cd9d2b44c6a12f731a53c6
SHA512e0d127a90bcadeafa6d8aa6d1acae5e008c2267100a320c7e1dbb3e90d8a582550bb623c69024a49377f436238288efb79de9a77a520dcb02391f8879cd24884
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
643KB
MD5363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70
-
Filesize
643KB
MD5363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c