Analysis
- max time kernel
59s - max time network
61s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
25/12/2022, 10:31
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
10 signatures
150 seconds
General
- Target file.exe
- Size 1.7MB
- Sample221225-mkdfxaee4v
- SHA256 68529454081bd8e2bfe17046ccc33d629fa581e03a566703a0ffdbfe8d86819a
- MD5 4825e7a63db70430d68abfaf5cfd3bf9
- SHA1 a9dc86a186ce0eedca9c10933cc4c5233bc2a21d
- SHA512 4ae67fbdce3910e3c363f14c631472717c43030902ada6719e23ba2c2b7c4ba9b997042167b059eee84c5a40a341d169c5321145ff780ad00f99c72df415c3ca
- SSDEEP 49152:2iOLVmzTJjtdp7Ef4VZHq88FYAKZqbRMZaG:2ikmTJRdp79H0hKZqGMG
- 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 1364 is-N78GO.tmp 752 SplitFiles120.exe 748 xNeffIsUBj.exe - Loads dropped DLL 10 IoCs
pid Process 1404 file.exe 1364 is-N78GO.tmp 1364 is-N78GO.tmp 1364 is-N78GO.tmp 1364 is-N78GO.tmp 752 SplitFiles120.exe 752 SplitFiles120.exe 752 SplitFiles120.exe 748 xNeffIsUBj.exe 748 xNeffIsUBj.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 17 IoCs
description ioc Process File created C:\Program Files (x86)\Split Files\language\is-EMBUI.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\is-GNAOH.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\is-9JKNA.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\language\is-QGGNI.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\language\is-0GQTF.tmp is-N78GO.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-N78GO.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles120.exe is-N78GO.tmp File created C:\Program Files (x86)\Split Files\language\is-4A8H5.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\language\is-USE19.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\is-95LP5.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-N78GO.tmp File created C:\Program Files (x86)\Split Files\language\is-5FCTN.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\language\is-2534O.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\is-6SN3L.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\is-1IK57.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\language\is-QO3EV.tmp is-N78GO.tmp File created C:\Program Files (x86)\Split Files\language\is-E7K29.tmp is-N78GO.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 832 taskkill.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 752 SplitFiles120.exe 752 SplitFiles120.exe 752 SplitFiles120.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 832 taskkill.exe Token: SeRestorePrivilege 1364 is-N78GO.tmp Token: SeBackupPrivilege 1364 is-N78GO.tmp - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1404 wrote to memory of 1364 1404 file.exe 28 PID 1404 wrote to memory of 1364 1404 file.exe 28 PID 1404 wrote to memory of 1364 1404 file.exe 28 PID 1404 wrote to memory of 1364 1404 file.exe 28 PID 1404 wrote to memory of 1364 1404 file.exe 28 PID 1404 wrote to memory of 1364 1404 file.exe 28 PID 1404 wrote to memory of 1364 1404 file.exe 28 PID 1364 wrote to memory of 752 1364 is-N78GO.tmp 29 PID 1364 wrote to memory of 752 1364 is-N78GO.tmp 29 PID 1364 wrote to memory of 752 1364 is-N78GO.tmp 29 PID 1364 wrote to memory of 752 1364 is-N78GO.tmp 29 PID 1364 wrote to memory of 752 1364 is-N78GO.tmp 29 PID 1364 wrote to memory of 752 1364 is-N78GO.tmp 29 PID 1364 wrote to memory of 752 1364 is-N78GO.tmp 29 PID 752 wrote to memory of 748 752 SplitFiles120.exe 30 PID 752 wrote to memory of 748 752 SplitFiles120.exe 30 PID 752 wrote to memory of 748 752 SplitFiles120.exe 30 PID 752 wrote to memory of 748 752 SplitFiles120.exe 30 PID 752 wrote to memory of 748 752 SplitFiles120.exe 30 PID 752 wrote to memory of 748 752 SplitFiles120.exe 30 PID 752 wrote to memory of 748 752 SplitFiles120.exe 30 PID 752 wrote to memory of 1156 752 SplitFiles120.exe 33 PID 752 wrote to memory of 1156 752 SplitFiles120.exe 33 PID 752 wrote to memory of 1156 752 SplitFiles120.exe 33 PID 752 wrote to memory of 1156 752 SplitFiles120.exe 33 PID 752 wrote to memory of 1156 752 SplitFiles120.exe 33 PID 752 wrote to memory of 1156 752 SplitFiles120.exe 33 PID 752 wrote to memory of 1156 752 SplitFiles120.exe 33 PID 1156 wrote to memory of 832 1156 cmd.exe 35 PID 1156 wrote to memory of 832 1156 cmd.exe 35 PID 1156 wrote to memory of 832 1156 cmd.exe 35 PID 1156 wrote to memory of 832 1156 cmd.exe 35 PID 1156 wrote to memory of 832 1156 cmd.exe 35 PID 1156 wrote to memory of 832 1156 cmd.exe 35 PID 1156 wrote to memory of 832 1156 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:1404 -
C:\Users\Admin\AppData\Local\Temp\is-E6S50.tmp\is-N78GO.tmp"C:\Users\Admin\AppData\Local\Temp\is-E6S50.tmp\is-N78GO.tmp" /SL4 $90126 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1583981 962562⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Program Files (x86)\Split Files\SplitFiles120.exe"C:\Program Files (x86)\Split Files\SplitFiles120.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:752 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\xNeffIsUBj.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:748
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles120.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles120.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles120.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:832
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\Split Files\SplitFiles120.exe
- Size 3.1MB
- SHA256 34465e0e67d8de4498eb70875b0a024a91b1b2ea2df85a7bf237c304d5a7595c
- MD5 548b3693b93793f7cce16cb5dd56fc11
- SHA1 b74d9499167cb7b5e48690caef9d68578457387d
- SHA512 458bf2dbae82c88255460befe519847fb0f9054be15d9d223ee5c11f8d85d097f7ec38faed483ed7dd500defbda29975193f205b674bf4d1bb4f73f0ead0bbd0
- SSDEEP 49152:ziz9UyswBOlwsIfvyEnm12vdkNEW5IcKNReR1jn:zizuyrslwbdnm12vdk2kIcKbeRdn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Split Files\SplitFiles120.exe
- Size 3.1MB
- SHA256 34465e0e67d8de4498eb70875b0a024a91b1b2ea2df85a7bf237c304d5a7595c
- MD5 548b3693b93793f7cce16cb5dd56fc11
- SHA1 b74d9499167cb7b5e48690caef9d68578457387d
- SHA512 458bf2dbae82c88255460befe519847fb0f9054be15d9d223ee5c11f8d85d097f7ec38faed483ed7dd500defbda29975193f205b674bf4d1bb4f73f0ead0bbd0
- SSDEEP 49152:ziz9UyswBOlwsIfvyEnm12vdkNEW5IcKNReR1jn:zizuyrslwbdnm12vdk2kIcKbeRdn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-E6S50.tmp\is-N78GO.tmp
- Size 687KB
- SHA256 a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
- MD5 ec5433295f9c12c2ac5bad1a56aa05b6
- SHA1 ec15e0b4f070b25a2b074c235f0d6ec0b2778000
- SHA512 c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
- SSDEEP 12288:gh5UooqWolrP837JzHvA6izJgnnyFNmayiAZrv92RxOM:y5NoqWolrP837JzHvA6yknyWFxv9QxOM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-E6S50.tmp\is-N78GO.tmp
- Size 687KB
- SHA256 a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
- MD5 ec5433295f9c12c2ac5bad1a56aa05b6
- SHA1 ec15e0b4f070b25a2b074c235f0d6ec0b2778000
- SHA512 c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
- SSDEEP 12288:gh5UooqWolrP837JzHvA6izJgnnyFNmayiAZrv92RxOM:y5NoqWolrP837JzHvA6yknyWFxv9QxOM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\xNeffIsUBj.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}\xNeffIsUBj.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)\Split Files\SplitFiles120.exe
- Size 3.1MB
- SHA256 34465e0e67d8de4498eb70875b0a024a91b1b2ea2df85a7bf237c304d5a7595c
- MD5 548b3693b93793f7cce16cb5dd56fc11
- SHA1 b74d9499167cb7b5e48690caef9d68578457387d
- SHA512 458bf2dbae82c88255460befe519847fb0f9054be15d9d223ee5c11f8d85d097f7ec38faed483ed7dd500defbda29975193f205b674bf4d1bb4f73f0ead0bbd0
- SSDEEP 49152:ziz9UyswBOlwsIfvyEnm12vdkNEW5IcKNReR1jn:zizuyrslwbdnm12vdk2kIcKbeRdn
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\Split Files\SplitFiles120.exe
- Size 3.1MB
- SHA256 34465e0e67d8de4498eb70875b0a024a91b1b2ea2df85a7bf237c304d5a7595c
- MD5 548b3693b93793f7cce16cb5dd56fc11
- SHA1 b74d9499167cb7b5e48690caef9d68578457387d
- SHA512 458bf2dbae82c88255460befe519847fb0f9054be15d9d223ee5c11f8d85d097f7ec38faed483ed7dd500defbda29975193f205b674bf4d1bb4f73f0ead0bbd0
- SSDEEP 49152:ziz9UyswBOlwsIfvyEnm12vdkNEW5IcKNReR1jn:zizuyrslwbdnm12vdk2kIcKbeRdn
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\Split Files\SplitFiles120.exe
- Size 3.1MB
- SHA256 34465e0e67d8de4498eb70875b0a024a91b1b2ea2df85a7bf237c304d5a7595c
- MD5 548b3693b93793f7cce16cb5dd56fc11
- SHA1 b74d9499167cb7b5e48690caef9d68578457387d
- SHA512 458bf2dbae82c88255460befe519847fb0f9054be15d9d223ee5c11f8d85d097f7ec38faed483ed7dd500defbda29975193f205b674bf4d1bb4f73f0ead0bbd0
- SSDEEP 49152:ziz9UyswBOlwsIfvyEnm12vdkNEW5IcKNReR1jn:zizuyrslwbdnm12vdk2kIcKbeRdn
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-E6S50.tmp\is-N78GO.tmp
- Size 687KB
- SHA256 a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
- MD5 ec5433295f9c12c2ac5bad1a56aa05b6
- SHA1 ec15e0b4f070b25a2b074c235f0d6ec0b2778000
- SHA512 c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
- SSDEEP 12288:gh5UooqWolrP837JzHvA6izJgnnyFNmayiAZrv92RxOM:y5NoqWolrP837JzHvA6yknyWFxv9QxOM
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-GHITL.tmp\_iscrypt.dll
- Size 2KB
- SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
- MD5 a69559718ab506675e907fe49deb71e9
- SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
- SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
- MD5 SHA1 SHA512
- Path \Users\Admin\AppData\Local\Temp\is-GHITL.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-GHITL.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}\xNeffIsUBj.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}\xNeffIsUBj.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}\xNeffIsUBj.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP