Analysis
-
max time kernel
77s -
max time network
80s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
18/11/2022, 19:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
-
Target
file.exe
-
Size
2.0MB
-
MD5
4e77619a5e7a42bd36adf716701e95be
-
SHA1
b23cc57112015b136221c7ee3a43f63a67104e2a
-
SHA256
d52915dfb4d46b9f4a91d0f828d85fb33796fdff7d58c137b2fab68cfa889980
-
SHA512
6314a6af252e9b4a0b1a2f4be8b3f2e7600f4b8de7e19c13a84b1782027c8078e6f883200e37ddc822a926d0a4eb620a4fa651f43e42202855e12eb6b13990fe
-
SSDEEP
49152:q2EcBxLykb4ouoTCoEhIOWQFV6o7fyHfRx7Pq2:rEcT+kb4olchFVX7aPD
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
-
Executes dropped EXE 3 IoCs
pid Process 672 is-6MFP0.tmp 1944 grsearcher83.exe 788 qED4oBqByo7g0.exe -
Loads dropped DLL 6 IoCs
pid Process 1348 file.exe 672 is-6MFP0.tmp 672 is-6MFP0.tmp 672 is-6MFP0.tmp 672 is-6MFP0.tmp 1944 grsearcher83.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 12 IoCs
description ioc Process File created C:\Program Files (x86)\grSearcher\is-JVH7O.tmp is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\is-EOJ0B.tmp is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\is-EHS4T.tmp is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\is-B11T7.tmp is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\is-98FHV.tmp is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\is-FQG1V.tmp is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\is-657R7.tmp is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\is-KG4DL.tmp is-6MFP0.tmp File opened for modification C:\Program Files (x86)\grSearcher\unins000.dat is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\unins000.dat is-6MFP0.tmp File created C:\Program Files (x86)\grSearcher\is-NCAMT.tmp is-6MFP0.tmp File opened for modification C:\Program Files (x86)\grSearcher\grsearcher83.exe is-6MFP0.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 628 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1944 grsearcher83.exe 1944 grsearcher83.exe 1944 grsearcher83.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 628 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1348 wrote to memory of 672 1348 file.exe 26 PID 1348 wrote to memory of 672 1348 file.exe 26 PID 1348 wrote to memory of 672 1348 file.exe 26 PID 1348 wrote to memory of 672 1348 file.exe 26 PID 1348 wrote to memory of 672 1348 file.exe 26 PID 1348 wrote to memory of 672 1348 file.exe 26 PID 1348 wrote to memory of 672 1348 file.exe 26 PID 672 wrote to memory of 1944 672 is-6MFP0.tmp 27 PID 672 wrote to memory of 1944 672 is-6MFP0.tmp 27 PID 672 wrote to memory of 1944 672 is-6MFP0.tmp 27 PID 672 wrote to memory of 1944 672 is-6MFP0.tmp 27 PID 1944 wrote to memory of 788 1944 grsearcher83.exe 28 PID 1944 wrote to memory of 788 1944 grsearcher83.exe 28 PID 1944 wrote to memory of 788 1944 grsearcher83.exe 28 PID 1944 wrote to memory of 788 1944 grsearcher83.exe 28 PID 1944 wrote to memory of 1852 1944 grsearcher83.exe 31 PID 1944 wrote to memory of 1852 1944 grsearcher83.exe 31 PID 1944 wrote to memory of 1852 1944 grsearcher83.exe 31 PID 1944 wrote to memory of 1852 1944 grsearcher83.exe 31 PID 1852 wrote to memory of 628 1852 cmd.exe 33 PID 1852 wrote to memory of 628 1852 cmd.exe 33 PID 1852 wrote to memory of 628 1852 cmd.exe 33 PID 1852 wrote to memory of 628 1852 cmd.exe 33
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:1348 -
C:\Users\Admin\AppData\Local\Temp\is-488JN.tmp\is-6MFP0.tmp"C:\Users\Admin\AppData\Local\Temp\is-488JN.tmp\is-6MFP0.tmp" /SL4 $90120 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1799804 547842⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:672 -
C:\Program Files (x86)\grSearcher\grsearcher83.exe"C:\Program Files (x86)\grSearcher\grsearcher83.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1944 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\qED4oBqByo7g0.exe4⤵
- Executes dropped EXE
PID:788
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "grsearcher83.exe" /f & erase "C:\Program Files (x86)\grSearcher\grsearcher83.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1852 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "grsearcher83.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:628
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2.8MB
MD54a9101315feaa042501898a516c9231e
SHA1ea7b8b8b17f968dfbdbd6855c3c9bb365ae4d438
SHA256428cdf0c5b694c0bf594ca9f5ab485de2fc41f8e5f8773fed56caa55f584744f
SHA5122e3d764ff8c76d8b43802f989148aa1176bc2d300a8279646bbefa335b2706281cfcf24c7efc9a6a822e3738f0b5edf646dcbc89917a331449afed8db5020287
-
Filesize
2.8MB
MD54a9101315feaa042501898a516c9231e
SHA1ea7b8b8b17f968dfbdbd6855c3c9bb365ae4d438
SHA256428cdf0c5b694c0bf594ca9f5ab485de2fc41f8e5f8773fed56caa55f584744f
SHA5122e3d764ff8c76d8b43802f989148aa1176bc2d300a8279646bbefa335b2706281cfcf24c7efc9a6a822e3738f0b5edf646dcbc89917a331449afed8db5020287
-
Filesize
659KB
MD534a3efb47055787f7a4537fb08fb93ec
SHA17396195a1bc60f31bb90b5c8abf4b4ce95ec06f9
SHA256fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409
SHA512055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff
-
Filesize
659KB
MD534a3efb47055787f7a4537fb08fb93ec
SHA17396195a1bc60f31bb90b5c8abf4b4ce95ec06f9
SHA256fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409
SHA512055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
2.8MB
MD54a9101315feaa042501898a516c9231e
SHA1ea7b8b8b17f968dfbdbd6855c3c9bb365ae4d438
SHA256428cdf0c5b694c0bf594ca9f5ab485de2fc41f8e5f8773fed56caa55f584744f
SHA5122e3d764ff8c76d8b43802f989148aa1176bc2d300a8279646bbefa335b2706281cfcf24c7efc9a6a822e3738f0b5edf646dcbc89917a331449afed8db5020287
-
Filesize
659KB
MD534a3efb47055787f7a4537fb08fb93ec
SHA17396195a1bc60f31bb90b5c8abf4b4ce95ec06f9
SHA256fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409
SHA512055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c