Analysis Overview
SHA256
c78c055e91264d511ae62f01a1a5286cf2d16bc5678395709832c36a63b2eea1
Threat Level: Known bad
The file file.exe was found to be: Known bad.
Malicious Activity Summary
NyMaim
Executes dropped EXE
Loads dropped DLL
Checks installed software on the system
Drops file in Program Files directory
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-18 20:16
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-18 20:16
Reported
2022-11-18 20:18
Platform
win7-20221111-en
Max time kernel
66s
Max time network
68s
Command Line
Signatures
NyMaim
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| N/A | N/A | C:\Program Files (x86)\grSearcher\grsearcher83.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\RGuo3O10dcHUQU.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| N/A | N/A | C:\Program Files (x86)\grSearcher\grsearcher83.exe | N/A |
Checks installed software on the system
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\grSearcher\is-5PPC3.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-AL4NO.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-V9P9E.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-0NOBG.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-N007C.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-MBM6A.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-G6CF9.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-T3E3C.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File opened for modification | C:\Program Files (x86)\grSearcher\unins000.dat | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\unins000.dat | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-SREH2.tmp | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
| File opened for modification | C:\Program Files (x86)\grSearcher\grsearcher83.exe | C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp | N/A |
Enumerates physical storage devices
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\grSearcher\grsearcher83.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\grSearcher\grsearcher83.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\grSearcher\grsearcher83.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp
"C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp" /SL4 $70124 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1801059 54784
C:\Program Files (x86)\grSearcher\grsearcher83.exe
"C:\Program Files (x86)\grSearcher\grsearcher83.exe"
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\RGuo3O10dcHUQU.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "grsearcher83.exe" /f & erase "C:\Program Files (x86)\grSearcher\grsearcher83.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "grsearcher83.exe" /f
Network
| Country | Destination | Domain | Proto |
| N/A | 45.139.105.171:80 | 45.139.105.171 | tcp |
| N/A | 107.182.129.235:80 | 107.182.129.235 | tcp |
| N/A | 171.22.30.106:80 | 171.22.30.106 | tcp |
Files
memory/1060-54-0x0000000075631000-0x0000000075633000-memory.dmp
memory/1060-55-0x0000000000400000-0x0000000000414000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp
| MD5 | 34a3efb47055787f7a4537fb08fb93ec |
| SHA1 | 7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9 |
| SHA256 | fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409 |
| SHA512 | 055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff |
memory/2036-58-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp
| MD5 | 34a3efb47055787f7a4537fb08fb93ec |
| SHA1 | 7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9 |
| SHA256 | fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409 |
| SHA512 | 055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff |
C:\Users\Admin\AppData\Local\Temp\is-U6H10.tmp\is-TU267.tmp
| MD5 | 34a3efb47055787f7a4537fb08fb93ec |
| SHA1 | 7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9 |
| SHA256 | fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409 |
| SHA512 | 055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff |
\Users\Admin\AppData\Local\Temp\is-G48LI.tmp\_isetup\_shfoldr.dll
| MD5 | 92dc6ef532fbb4a5c3201469a5b5eb63 |
| SHA1 | 3e89ff837147c16b4e41c30d6c796374e0b8e62c |
| SHA256 | 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87 |
| SHA512 | 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3 |
\Users\Admin\AppData\Local\Temp\is-G48LI.tmp\_isetup\_shfoldr.dll
| MD5 | 92dc6ef532fbb4a5c3201469a5b5eb63 |
| SHA1 | 3e89ff837147c16b4e41c30d6c796374e0b8e62c |
| SHA256 | 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87 |
| SHA512 | 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3 |
\Users\Admin\AppData\Local\Temp\is-G48LI.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
memory/1060-65-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1460-67-0x0000000000000000-mapping.dmp
\Program Files (x86)\grSearcher\grsearcher83.exe
| MD5 | 2901599849c63bb80880129edd38c3ed |
| SHA1 | c5acc4af1c891fc38b9e464891ef82e152f20bbe |
| SHA256 | 9a7c43f5c3129a6e26cb469a748068a530fedad3bd763e8f6b9b41acd1e18857 |
| SHA512 | 55052b5e5fd3b8c6633722f889645f51fdd643f7e47474c57fed2ef3db8aeff26b08354b190170157f85e7648e042ae8dfc509777caa3d755dbb72907a6091e8 |
C:\Program Files (x86)\grSearcher\grsearcher83.exe
| MD5 | 2901599849c63bb80880129edd38c3ed |
| SHA1 | c5acc4af1c891fc38b9e464891ef82e152f20bbe |
| SHA256 | 9a7c43f5c3129a6e26cb469a748068a530fedad3bd763e8f6b9b41acd1e18857 |
| SHA512 | 55052b5e5fd3b8c6633722f889645f51fdd643f7e47474c57fed2ef3db8aeff26b08354b190170157f85e7648e042ae8dfc509777caa3d755dbb72907a6091e8 |
memory/2036-70-0x0000000003220000-0x00000000042E8000-memory.dmp
memory/1460-71-0x0000000000400000-0x00000000014C8000-memory.dmp
memory/1460-72-0x0000000000400000-0x00000000014C8000-memory.dmp
memory/1460-73-0x0000000000400000-0x00000000014C8000-memory.dmp
\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\RGuo3O10dcHUQU.exe
| MD5 | 3fb36cb0b7172e5298d2992d42984d06 |
| SHA1 | 439827777df4a337cbb9fa4a4640d0d3fa1738b7 |
| SHA256 | 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6 |
| SHA512 | 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c |
memory/1064-75-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\RGuo3O10dcHUQU.exe
| MD5 | 3fb36cb0b7172e5298d2992d42984d06 |
| SHA1 | 439827777df4a337cbb9fa4a4640d0d3fa1738b7 |
| SHA256 | 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6 |
| SHA512 | 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c |
memory/1460-77-0x0000000010000000-0x000000001001B000-memory.dmp
memory/1460-81-0x0000000000400000-0x00000000014C8000-memory.dmp
memory/1460-82-0x0000000000400000-0x00000000014C8000-memory.dmp
memory/1332-83-0x0000000000000000-mapping.dmp
memory/1656-84-0x0000000000000000-mapping.dmp
memory/1460-85-0x0000000000400000-0x00000000014C8000-memory.dmp
memory/1060-86-0x0000000000400000-0x0000000000414000-memory.dmp
C:\Program Files (x86)\grSearcher\grsearcher83.exe
| MD5 | 2901599849c63bb80880129edd38c3ed |
| SHA1 | c5acc4af1c891fc38b9e464891ef82e152f20bbe |
| SHA256 | 9a7c43f5c3129a6e26cb469a748068a530fedad3bd763e8f6b9b41acd1e18857 |
| SHA512 | 55052b5e5fd3b8c6633722f889645f51fdd643f7e47474c57fed2ef3db8aeff26b08354b190170157f85e7648e042ae8dfc509777caa3d755dbb72907a6091e8 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-11-18 20:16
Reported
2022-11-18 20:18
Platform
win10v2004-20221111-en
Max time kernel
150s
Max time network
154s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| N/A | N/A | C:\Program Files (x86)\grSearcher\grsearcher83.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
Checks installed software on the system
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\grSearcher\is-FRQQK.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-V5P78.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-RSO74.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-PHVQQ.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File opened for modification | C:\Program Files (x86)\grSearcher\grsearcher83.exe | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\unins000.dat | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-MEEH5.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-SDK49.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-DTI64.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-VF9P9.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File created | C:\Program Files (x86)\grSearcher\is-ATFBT.tmp | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
| File opened for modification | C:\Program Files (x86)\grSearcher\unins000.dat | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2116 wrote to memory of 4324 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp |
| PID 2116 wrote to memory of 4324 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp |
| PID 2116 wrote to memory of 4324 | N/A | C:\Users\Admin\AppData\Local\Temp\file.exe | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp |
| PID 4324 wrote to memory of 2404 | N/A | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | C:\Program Files (x86)\grSearcher\grsearcher83.exe |
| PID 4324 wrote to memory of 2404 | N/A | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | C:\Program Files (x86)\grSearcher\grsearcher83.exe |
| PID 4324 wrote to memory of 2404 | N/A | C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp | C:\Program Files (x86)\grSearcher\grsearcher83.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp
"C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp" /SL4 $80056 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1801059 54784
C:\Program Files (x86)\grSearcher\grsearcher83.exe
"C:\Program Files (x86)\grSearcher\grsearcher83.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.220.29:80 | tcp | |
| N/A | 93.184.220.29:80 | tcp | |
| N/A | 20.54.89.15:443 | tcp | |
| N/A | 104.80.225.205:443 | tcp | |
| N/A | 8.8.8.8:53 | 164.2.77.40.in-addr.arpa | udp |
| N/A | 8.253.208.121:80 | tcp | |
| N/A | 8.253.208.121:80 | tcp | |
| N/A | 8.8.8.8:53 | 226.101.242.52.in-addr.arpa | udp |
Files
memory/2116-132-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4324-134-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp
| MD5 | 34a3efb47055787f7a4537fb08fb93ec |
| SHA1 | 7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9 |
| SHA256 | fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409 |
| SHA512 | 055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff |
C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp
| MD5 | 34a3efb47055787f7a4537fb08fb93ec |
| SHA1 | 7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9 |
| SHA256 | fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409 |
| SHA512 | 055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff |
C:\Users\Admin\AppData\Local\Temp\is-5KV36.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
memory/2116-138-0x0000000000400000-0x0000000000414000-memory.dmp
C:\Program Files (x86)\grSearcher\grsearcher83.exe
| MD5 | 2901599849c63bb80880129edd38c3ed |
| SHA1 | c5acc4af1c891fc38b9e464891ef82e152f20bbe |
| SHA256 | 9a7c43f5c3129a6e26cb469a748068a530fedad3bd763e8f6b9b41acd1e18857 |
| SHA512 | 55052b5e5fd3b8c6633722f889645f51fdd643f7e47474c57fed2ef3db8aeff26b08354b190170157f85e7648e042ae8dfc509777caa3d755dbb72907a6091e8 |
memory/2404-139-0x0000000000000000-mapping.dmp
C:\Program Files (x86)\grSearcher\grsearcher83.exe
| MD5 | 2901599849c63bb80880129edd38c3ed |
| SHA1 | c5acc4af1c891fc38b9e464891ef82e152f20bbe |
| SHA256 | 9a7c43f5c3129a6e26cb469a748068a530fedad3bd763e8f6b9b41acd1e18857 |
| SHA512 | 55052b5e5fd3b8c6633722f889645f51fdd643f7e47474c57fed2ef3db8aeff26b08354b190170157f85e7648e042ae8dfc509777caa3d755dbb72907a6091e8 |
memory/2116-142-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2404-143-0x0000000000400000-0x00000000014C8000-memory.dmp
memory/2404-144-0x0000000000400000-0x00000000014C8000-memory.dmp