Analysis
- max time kernel
64s - max time network
84s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
22/11/2022, 02:02
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
10 signatures
150 seconds
General
- Target file.exe
- Size 1.3MB
- Sample221122-cf43ysfa96
- SHA256 5f7d5ac5776d86b03306916e6a5bbba4ff53a8fa302ee520ab21ae922c202adf
- MD5 dd5fadcdf553636639cf856a7030b2d7
- SHA1 d316400259759fafbd410a8aa8dfb881badf9640
- SHA512 b763387142067afe48be83b4a33b833afc43560404a243fe28174949a3879bf840588106053d22712d7ccb09fff44a2934c71e15f8793e5bc4362634c5047df2
- SSDEEP 24576:9izgWp2FFskB1I5wYJ/xZNF34s8YzAiExkayPU21G05HvQKt8MkCawgZIY7eCLx7:Wg8251SRj73Fb0yPPUbnCavNeViv
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
nymaim
C2
-
45.139.105.171
-
85.31.46.167
Signatures
- Executes dropped EXE 3 IoCs
pid Process 1708 is-BGEPK.tmp 1496 PrintFolders.exe 1028 OFfqfnY0ButzU4.exe - Loads dropped DLL 10 IoCs
pid Process 1264 file.exe 1708 is-BGEPK.tmp 1708 is-BGEPK.tmp 1708 is-BGEPK.tmp 1708 is-BGEPK.tmp 1496 PrintFolders.exe 1496 PrintFolders.exe 1496 PrintFolders.exe 1028 OFfqfnY0ButzU4.exe 1028 OFfqfnY0ButzU4.exe - 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 created C:\Program Files (x86)\PrintFolders\is-E6A65.tmp is-BGEPK.tmp File created C:\Program Files (x86)\PrintFolders\is-QME8A.tmp is-BGEPK.tmp File created C:\Program Files (x86)\PrintFolders\is-LK9MM.tmp is-BGEPK.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-BGEPK.tmp File created C:\Program Files (x86)\PrintFolders\unins000.dat is-BGEPK.tmp File created C:\Program Files (x86)\PrintFolders\is-OKHID.tmp is-BGEPK.tmp File created C:\Program Files (x86)\PrintFolders\is-7FQQ6.tmp is-BGEPK.tmp File created C:\Program Files (x86)\PrintFolders\is-4C1KM.tmp is-BGEPK.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-BGEPK.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 1020 taskkill.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1496 PrintFolders.exe 1496 PrintFolders.exe 1496 PrintFolders.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1020 taskkill.exe Token: SeRestorePrivilege 1708 is-BGEPK.tmp Token: SeBackupPrivilege 1708 is-BGEPK.tmp - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1264 wrote to memory of 1708 1264 file.exe 28 PID 1264 wrote to memory of 1708 1264 file.exe 28 PID 1264 wrote to memory of 1708 1264 file.exe 28 PID 1264 wrote to memory of 1708 1264 file.exe 28 PID 1264 wrote to memory of 1708 1264 file.exe 28 PID 1264 wrote to memory of 1708 1264 file.exe 28 PID 1264 wrote to memory of 1708 1264 file.exe 28 PID 1708 wrote to memory of 1496 1708 is-BGEPK.tmp 29 PID 1708 wrote to memory of 1496 1708 is-BGEPK.tmp 29 PID 1708 wrote to memory of 1496 1708 is-BGEPK.tmp 29 PID 1708 wrote to memory of 1496 1708 is-BGEPK.tmp 29 PID 1708 wrote to memory of 1496 1708 is-BGEPK.tmp 29 PID 1708 wrote to memory of 1496 1708 is-BGEPK.tmp 29 PID 1708 wrote to memory of 1496 1708 is-BGEPK.tmp 29 PID 1496 wrote to memory of 1028 1496 PrintFolders.exe 30 PID 1496 wrote to memory of 1028 1496 PrintFolders.exe 30 PID 1496 wrote to memory of 1028 1496 PrintFolders.exe 30 PID 1496 wrote to memory of 1028 1496 PrintFolders.exe 30 PID 1496 wrote to memory of 1028 1496 PrintFolders.exe 30 PID 1496 wrote to memory of 1028 1496 PrintFolders.exe 30 PID 1496 wrote to memory of 1028 1496 PrintFolders.exe 30 PID 1496 wrote to memory of 1692 1496 PrintFolders.exe 33 PID 1496 wrote to memory of 1692 1496 PrintFolders.exe 33 PID 1496 wrote to memory of 1692 1496 PrintFolders.exe 33 PID 1496 wrote to memory of 1692 1496 PrintFolders.exe 33 PID 1496 wrote to memory of 1692 1496 PrintFolders.exe 33 PID 1496 wrote to memory of 1692 1496 PrintFolders.exe 33 PID 1496 wrote to memory of 1692 1496 PrintFolders.exe 33 PID 1692 wrote to memory of 1020 1692 cmd.exe 35 PID 1692 wrote to memory of 1020 1692 cmd.exe 35 PID 1692 wrote to memory of 1020 1692 cmd.exe 35 PID 1692 wrote to memory of 1020 1692 cmd.exe 35 PID 1692 wrote to memory of 1020 1692 cmd.exe 35 PID 1692 wrote to memory of 1020 1692 cmd.exe 35 PID 1692 wrote to memory of 1020 1692 cmd.exe 35
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1264 -
C:\Users\Admin\AppData\Local\Temp\is-91T1P.tmp\is-BGEPK.tmp"C:\Users\Admin\AppData\Local\Temp\is-91T1P.tmp\is-BGEPK.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1084405 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708 -
C:\Program Files (x86)\PrintFolders\PrintFolders.exe"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1496 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\OFfqfnY0ButzU4.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1028
-
-
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:1692 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "PrintFolders.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1020
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\PrintFolders\PrintFolders.exe
- Size 1.5MB
- SHA256 742bc6bf089146e374af979f4dfaabd3fb0ee160ad510d3305079155db6a728a
- MD5 544acc8db8170ceb379baea96ec08557
- SHA1 8b962a3142773742324cb1fd9d46d32b3770918e
- SHA512 716f288def4acde44972a74999b88bc09958c19aab6a91ac5a3e210b0adb85674513e3e3bbf4c1b6b1dd3d47cba049daa38cbd41e16bfbec80213a6e356a9e9d
- SSDEEP 24576:O+5b+ah+M+0+/z+FmNwxS+G9+uRlP26CxMPVQ/uRHZ7DvxJeUAKXytMLLBAZyZ4U:X4awVNCIK5xuR06+KtDjeUAKCui81l3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\PrintFolders\PrintFolders.exe
- Size 1.5MB
- SHA256 742bc6bf089146e374af979f4dfaabd3fb0ee160ad510d3305079155db6a728a
- MD5 544acc8db8170ceb379baea96ec08557
- SHA1 8b962a3142773742324cb1fd9d46d32b3770918e
- SHA512 716f288def4acde44972a74999b88bc09958c19aab6a91ac5a3e210b0adb85674513e3e3bbf4c1b6b1dd3d47cba049daa38cbd41e16bfbec80213a6e356a9e9d
- SSDEEP 24576:O+5b+ah+M+0+/z+FmNwxS+G9+uRlP26CxMPVQ/uRHZ7DvxJeUAKXytMLLBAZyZ4U:X4awVNCIK5xuR06+KtDjeUAKCui81l3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-91T1P.tmp\is-BGEPK.tmp
- Size 643KB
- SHA256 1441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
- MD5 85b94e72c3f2d2b5464e2aaf3c9e242a
- SHA1 ce7ccae5f50a990d059d59292d4a332979e162ba
- SHA512 c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
- SSDEEP 12288:Oh5UooqWolrP837JzHvA6izJgnnyFNmayiAZrvJxO0:05NoqWolrP837JzHvA6yknyWFxvJxO0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-91T1P.tmp\is-BGEPK.tmp
- Size 643KB
- SHA256 1441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
- MD5 85b94e72c3f2d2b5464e2aaf3c9e242a
- SHA1 ce7ccae5f50a990d059d59292d4a332979e162ba
- SHA512 c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
- SSDEEP 12288:Oh5UooqWolrP837JzHvA6izJgnnyFNmayiAZrvJxO0:05NoqWolrP837JzHvA6yknyWFxvJxO0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\OFfqfnY0ButzU4.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\OFfqfnY0ButzU4.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\PrintFolders\PrintFolders.exe
- Size 1.5MB
- SHA256 742bc6bf089146e374af979f4dfaabd3fb0ee160ad510d3305079155db6a728a
- MD5 544acc8db8170ceb379baea96ec08557
- SHA1 8b962a3142773742324cb1fd9d46d32b3770918e
- SHA512 716f288def4acde44972a74999b88bc09958c19aab6a91ac5a3e210b0adb85674513e3e3bbf4c1b6b1dd3d47cba049daa38cbd41e16bfbec80213a6e356a9e9d
- SSDEEP 24576:O+5b+ah+M+0+/z+FmNwxS+G9+uRlP26CxMPVQ/uRHZ7DvxJeUAKXytMLLBAZyZ4U:X4awVNCIK5xuR06+KtDjeUAKCui81l3
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\PrintFolders\PrintFolders.exe
- Size 1.5MB
- SHA256 742bc6bf089146e374af979f4dfaabd3fb0ee160ad510d3305079155db6a728a
- MD5 544acc8db8170ceb379baea96ec08557
- SHA1 8b962a3142773742324cb1fd9d46d32b3770918e
- SHA512 716f288def4acde44972a74999b88bc09958c19aab6a91ac5a3e210b0adb85674513e3e3bbf4c1b6b1dd3d47cba049daa38cbd41e16bfbec80213a6e356a9e9d
- SSDEEP 24576:O+5b+ah+M+0+/z+FmNwxS+G9+uRlP26CxMPVQ/uRHZ7DvxJeUAKXytMLLBAZyZ4U:X4awVNCIK5xuR06+KtDjeUAKCui81l3
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\PrintFolders\PrintFolders.exe
- Size 1.5MB
- SHA256 742bc6bf089146e374af979f4dfaabd3fb0ee160ad510d3305079155db6a728a
- MD5 544acc8db8170ceb379baea96ec08557
- SHA1 8b962a3142773742324cb1fd9d46d32b3770918e
- SHA512 716f288def4acde44972a74999b88bc09958c19aab6a91ac5a3e210b0adb85674513e3e3bbf4c1b6b1dd3d47cba049daa38cbd41e16bfbec80213a6e356a9e9d
- SSDEEP 24576:O+5b+ah+M+0+/z+FmNwxS+G9+uRlP26CxMPVQ/uRHZ7DvxJeUAKXytMLLBAZyZ4U:X4awVNCIK5xuR06+KtDjeUAKCui81l3
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-91T1P.tmp\is-BGEPK.tmp
- Size 643KB
- SHA256 1441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
- MD5 85b94e72c3f2d2b5464e2aaf3c9e242a
- SHA1 ce7ccae5f50a990d059d59292d4a332979e162ba
- SHA512 c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
- SSDEEP 12288:Oh5UooqWolrP837JzHvA6izJgnnyFNmayiAZrvJxO0:05NoqWolrP837JzHvA6yknyWFxvJxO0
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-EA9B9.tmp\_iscrypt.dll
- Size 2KB
- SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
- MD5 a69559718ab506675e907fe49deb71e9
- SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
- SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
- MD5 SHA1 SHA512
- Path \Users\Admin\AppData\Local\Temp\is-EA9B9.tmp\_isetup\_shfoldr.dll
- Size 22KB
- SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
- MD5 92dc6ef532fbb4a5c3201469a5b5eb63
- SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
- SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
- SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-EA9B9.tmp\_isetup\_shfoldr.dll
- Size 22KB
- SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
- MD5 92dc6ef532fbb4a5c3201469a5b5eb63
- SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
- SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
- SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\OFfqfnY0ButzU4.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\OFfqfnY0ButzU4.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\OFfqfnY0ButzU4.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP