Analysis
- max time kernel
55s - max time network
57s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
30/12/2022, 01:56
Static task
static1
Behavioral task
behavioral1
Sample
febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe
Resource
win7-20221111-en
10 signatures
150 seconds
General
- Target febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe
- Size 1.8MB
- Sample221230-ccwmeaaa4x
- SHA256 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f
- MD5 c5a31e850e32e4b779a2eb6257cab613
- SHA1 f91799e5e4ecf64f8c68cf17b99c03957403523b
- SHA512 f7e827114d49b60e6751c4337f1d09d8a03f58d8b54c5f7f1ebabee1b22d8af03c96243e1e60a2440491eb6794acf8d153f3c4e4183c329f207cb9348e7c2306
- SSDEEP 49152:5iRVZQ220TLIaNCJdHFGEfPn5m4+Hth960:5iRVZQENC3HFtvs4+HtHZ
- 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 956 is-H9QO2.tmp 1120 SplitFiles124.exe 436 2O11d.exe - Loads dropped DLL 10 IoCs
pid Process 1432 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe 956 is-H9QO2.tmp 956 is-H9QO2.tmp 956 is-H9QO2.tmp 956 is-H9QO2.tmp 1120 SplitFiles124.exe 1120 SplitFiles124.exe 1120 SplitFiles124.exe 436 2O11d.exe 436 2O11d.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\is-M6OV1.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-PJPHC.tmp is-H9QO2.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles124.exe is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-6P8I4.tmp is-H9QO2.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-16VE1.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-4DL4B.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-GE3JT.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\is-F44L9.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\is-TIGB9.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\is-87DFA.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-GT2Q2.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-VIG91.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-8T5GS.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\language\is-PESUG.tmp is-H9QO2.tmp File created C:\Program Files (x86)\Split Files\is-OIJ5H.tmp is-H9QO2.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 1904 taskkill.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1120 SplitFiles124.exe 1120 SplitFiles124.exe 1120 SplitFiles124.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1904 taskkill.exe Token: SeRestorePrivilege 956 is-H9QO2.tmp Token: SeBackupPrivilege 956 is-H9QO2.tmp - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1432 wrote to memory of 956 1432 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe 28 PID 1432 wrote to memory of 956 1432 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe 28 PID 1432 wrote to memory of 956 1432 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe 28 PID 1432 wrote to memory of 956 1432 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe 28 PID 1432 wrote to memory of 956 1432 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe 28 PID 1432 wrote to memory of 956 1432 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe 28 PID 1432 wrote to memory of 956 1432 febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe 28 PID 956 wrote to memory of 1120 956 is-H9QO2.tmp 29 PID 956 wrote to memory of 1120 956 is-H9QO2.tmp 29 PID 956 wrote to memory of 1120 956 is-H9QO2.tmp 29 PID 956 wrote to memory of 1120 956 is-H9QO2.tmp 29 PID 956 wrote to memory of 1120 956 is-H9QO2.tmp 29 PID 956 wrote to memory of 1120 956 is-H9QO2.tmp 29 PID 956 wrote to memory of 1120 956 is-H9QO2.tmp 29 PID 1120 wrote to memory of 436 1120 SplitFiles124.exe 30 PID 1120 wrote to memory of 436 1120 SplitFiles124.exe 30 PID 1120 wrote to memory of 436 1120 SplitFiles124.exe 30 PID 1120 wrote to memory of 436 1120 SplitFiles124.exe 30 PID 1120 wrote to memory of 436 1120 SplitFiles124.exe 30 PID 1120 wrote to memory of 436 1120 SplitFiles124.exe 30 PID 1120 wrote to memory of 436 1120 SplitFiles124.exe 30 PID 1120 wrote to memory of 1768 1120 SplitFiles124.exe 33 PID 1120 wrote to memory of 1768 1120 SplitFiles124.exe 33 PID 1120 wrote to memory of 1768 1120 SplitFiles124.exe 33 PID 1120 wrote to memory of 1768 1120 SplitFiles124.exe 33 PID 1120 wrote to memory of 1768 1120 SplitFiles124.exe 33 PID 1120 wrote to memory of 1768 1120 SplitFiles124.exe 33 PID 1120 wrote to memory of 1768 1120 SplitFiles124.exe 33 PID 1768 wrote to memory of 1904 1768 cmd.exe 35 PID 1768 wrote to memory of 1904 1768 cmd.exe 35 PID 1768 wrote to memory of 1904 1768 cmd.exe 35 PID 1768 wrote to memory of 1904 1768 cmd.exe 35 PID 1768 wrote to memory of 1904 1768 cmd.exe 35 PID 1768 wrote to memory of 1904 1768 cmd.exe 35 PID 1768 wrote to memory of 1904 1768 cmd.exe 35
Processes
-
C:\Users\Admin\AppData\Local\Temp\febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe"C:\Users\Admin\AppData\Local\Temp\febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1432 -
C:\Users\Admin\AppData\Local\Temp\is-OKRCH.tmp\is-H9QO2.tmp"C:\Users\Admin\AppData\Local\Temp\is-OKRCH.tmp\is-H9QO2.tmp" /SL4 $7012A "C:\Users\Admin\AppData\Local\Temp\febde8fd7e0d1b6191442768f2d8dd2d7dd90740c70fe917f3b4f1c24ea0d46f.exe" 1661482 1664002⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:956 -
C:\Program Files (x86)\Split Files\SplitFiles124.exe"C:\Program Files (x86)\Split Files\SplitFiles124.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1120 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\2O11d.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:436
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles124.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles124.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1768 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles124.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1904
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\Split Files\SplitFiles124.exe
- Size 3.2MB
- SHA256 c8bd57de5ec1ead05cb012edb4898ba71ba2dcccedf8aa30684cae0cf6003a5e
- MD5 ef5ab90d98f271999209a3343fb71275
- SHA1 2afdc643832c98f2b8d0bc797df0a6ff18c04956
- SHA512 7ec5ecae5cfa1383173b17a52e2621519d6d4bdc2008c973fffc514c905b520bc3803fe5e10082d55a6a62df87fcd1299fe665419de9a1dca3d494b09adb0894
- SSDEEP 98304:VsoMfyWhwutt5BGbvY7qO32WCMYsuzVvKj:VsoMfyWhdttaaCW
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Split Files\SplitFiles124.exe
- Size 3.2MB
- SHA256 c8bd57de5ec1ead05cb012edb4898ba71ba2dcccedf8aa30684cae0cf6003a5e
- MD5 ef5ab90d98f271999209a3343fb71275
- SHA1 2afdc643832c98f2b8d0bc797df0a6ff18c04956
- SHA512 7ec5ecae5cfa1383173b17a52e2621519d6d4bdc2008c973fffc514c905b520bc3803fe5e10082d55a6a62df87fcd1299fe665419de9a1dca3d494b09adb0894
- SSDEEP 98304:VsoMfyWhwutt5BGbvY7qO32WCMYsuzVvKj:VsoMfyWhdttaaCW
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-OKRCH.tmp\is-H9QO2.tmp
- Size 756KB
- SHA256 0cf25da416c0de0814b116f3b917412415e285622149b82d6ee701d94316427b
- MD5 88c7387a76635a30298c1fea18eb963d
- SHA1 8a01e609d9f076fd09ec9eec99b512c3571efdbc
- SHA512 e3d7736fa09f81ff239ce20b9c7cfacc171b63a215f5658c0de9f57dfbb4b9fb7dd96875ecacd7e652d06ff100fa4f7fca63ba2688d48b122bf03c8dbd08ad2b
- SSDEEP 12288:MpmOmg1k2bfrP437QzH/A6A40lG77NzknuGyskoxOg:Gmt2bfrP437QzH/A6A7E7dVPgxOg
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-OKRCH.tmp\is-H9QO2.tmp
- Size 756KB
- SHA256 0cf25da416c0de0814b116f3b917412415e285622149b82d6ee701d94316427b
- MD5 88c7387a76635a30298c1fea18eb963d
- SHA1 8a01e609d9f076fd09ec9eec99b512c3571efdbc
- SHA512 e3d7736fa09f81ff239ce20b9c7cfacc171b63a215f5658c0de9f57dfbb4b9fb7dd96875ecacd7e652d06ff100fa4f7fca63ba2688d48b122bf03c8dbd08ad2b
- SSDEEP 12288:MpmOmg1k2bfrP437QzH/A6A40lG77NzknuGyskoxOg:Gmt2bfrP437QzH/A6A7E7dVPgxOg
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\2O11d.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}\2O11d.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\SplitFiles124.exe
- Size 3.2MB
- SHA256 c8bd57de5ec1ead05cb012edb4898ba71ba2dcccedf8aa30684cae0cf6003a5e
- MD5 ef5ab90d98f271999209a3343fb71275
- SHA1 2afdc643832c98f2b8d0bc797df0a6ff18c04956
- SHA512 7ec5ecae5cfa1383173b17a52e2621519d6d4bdc2008c973fffc514c905b520bc3803fe5e10082d55a6a62df87fcd1299fe665419de9a1dca3d494b09adb0894
- SSDEEP 98304:VsoMfyWhwutt5BGbvY7qO32WCMYsuzVvKj:VsoMfyWhdttaaCW
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\Split Files\SplitFiles124.exe
- Size 3.2MB
- SHA256 c8bd57de5ec1ead05cb012edb4898ba71ba2dcccedf8aa30684cae0cf6003a5e
- MD5 ef5ab90d98f271999209a3343fb71275
- SHA1 2afdc643832c98f2b8d0bc797df0a6ff18c04956
- SHA512 7ec5ecae5cfa1383173b17a52e2621519d6d4bdc2008c973fffc514c905b520bc3803fe5e10082d55a6a62df87fcd1299fe665419de9a1dca3d494b09adb0894
- SSDEEP 98304:VsoMfyWhwutt5BGbvY7qO32WCMYsuzVvKj:VsoMfyWhdttaaCW
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\Split Files\SplitFiles124.exe
- Size 3.2MB
- SHA256 c8bd57de5ec1ead05cb012edb4898ba71ba2dcccedf8aa30684cae0cf6003a5e
- MD5 ef5ab90d98f271999209a3343fb71275
- SHA1 2afdc643832c98f2b8d0bc797df0a6ff18c04956
- SHA512 7ec5ecae5cfa1383173b17a52e2621519d6d4bdc2008c973fffc514c905b520bc3803fe5e10082d55a6a62df87fcd1299fe665419de9a1dca3d494b09adb0894
- SSDEEP 98304:VsoMfyWhwutt5BGbvY7qO32WCMYsuzVvKj:VsoMfyWhdttaaCW
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-OKRCH.tmp\is-H9QO2.tmp
- Size 756KB
- SHA256 0cf25da416c0de0814b116f3b917412415e285622149b82d6ee701d94316427b
- MD5 88c7387a76635a30298c1fea18eb963d
- SHA1 8a01e609d9f076fd09ec9eec99b512c3571efdbc
- SHA512 e3d7736fa09f81ff239ce20b9c7cfacc171b63a215f5658c0de9f57dfbb4b9fb7dd96875ecacd7e652d06ff100fa4f7fca63ba2688d48b122bf03c8dbd08ad2b
- SSDEEP 12288:MpmOmg1k2bfrP437QzH/A6A40lG77NzknuGyskoxOg:Gmt2bfrP437QzH/A6A7E7dVPgxOg
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-RVMDD.tmp\_iscrypt.dll
- Size 2KB
- SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
- MD5 a69559718ab506675e907fe49deb71e9
- SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
- SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
- MD5 SHA1 SHA512
- Path \Users\Admin\AppData\Local\Temp\is-RVMDD.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-RVMDD.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}\2O11d.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}\2O11d.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}\2O11d.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP