Analysis
-
max time kernel
58s -
max time network
61s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
20/11/2022, 19:16
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
General
-
Target
file.exe
-
Size
2.3MB
-
MD5
3cdfed9d6debd4a264bc134051876e17
-
SHA1
9cf41b22a33d126055fbb445eb9d3f4b244b276a
-
SHA256
a3fa57d6f4ad20271316af34f697a8c4c07ce734bda1900f0f11dd10a3ea2cad
-
SHA512
2df8943933197715860153255319db344db84bd41c3147cb814c2be418716c565a67e17e502204afa264885bf5ee22545acfe1e66d2c79ed564a01c233b2d2d6
-
SSDEEP
49152:q2th79YplIG26JrlqqOU31I5i6ovrjoql+ESjvvnWLPUxVkBaFwnm:r/79QlIG/TPIEDoQ+xjvvnKUxVkB04m
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
-
Executes dropped EXE 3 IoCs
pid Process 1932 is-J97VJ.tmp 1732 gusearcher85.exe 1196 vTKS97dx1A.exe -
Loads dropped DLL 6 IoCs
pid Process 1256 file.exe 1932 is-J97VJ.tmp 1932 is-J97VJ.tmp 1932 is-J97VJ.tmp 1932 is-J97VJ.tmp 1732 gusearcher85.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)\guSearcher\is-EAEH7.tmp is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\is-2P9G3.tmp is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\is-HHNQJ.tmp is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\is-1BD0C.tmp is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\is-122JK.tmp is-J97VJ.tmp File opened for modification C:\Program Files (x86)\guSearcher\unins000.dat is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\unins000.dat is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\is-P1H30.tmp is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\is-LSDS4.tmp is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\is-3BBN4.tmp is-J97VJ.tmp File opened for modification C:\Program Files (x86)\guSearcher\gusearcher85.exe is-J97VJ.tmp File created C:\Program Files (x86)\guSearcher\is-516I3.tmp is-J97VJ.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 2028 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1732 gusearcher85.exe 1732 gusearcher85.exe 1732 gusearcher85.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2028 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1256 wrote to memory of 1932 1256 file.exe 26 PID 1256 wrote to memory of 1932 1256 file.exe 26 PID 1256 wrote to memory of 1932 1256 file.exe 26 PID 1256 wrote to memory of 1932 1256 file.exe 26 PID 1256 wrote to memory of 1932 1256 file.exe 26 PID 1256 wrote to memory of 1932 1256 file.exe 26 PID 1256 wrote to memory of 1932 1256 file.exe 26 PID 1932 wrote to memory of 1732 1932 is-J97VJ.tmp 27 PID 1932 wrote to memory of 1732 1932 is-J97VJ.tmp 27 PID 1932 wrote to memory of 1732 1932 is-J97VJ.tmp 27 PID 1932 wrote to memory of 1732 1932 is-J97VJ.tmp 27 PID 1732 wrote to memory of 1196 1732 gusearcher85.exe 28 PID 1732 wrote to memory of 1196 1732 gusearcher85.exe 28 PID 1732 wrote to memory of 1196 1732 gusearcher85.exe 28 PID 1732 wrote to memory of 1196 1732 gusearcher85.exe 28 PID 1732 wrote to memory of 296 1732 gusearcher85.exe 31 PID 1732 wrote to memory of 296 1732 gusearcher85.exe 31 PID 1732 wrote to memory of 296 1732 gusearcher85.exe 31 PID 1732 wrote to memory of 296 1732 gusearcher85.exe 31 PID 296 wrote to memory of 2028 296 cmd.exe 33 PID 296 wrote to memory of 2028 296 cmd.exe 33 PID 296 wrote to memory of 2028 296 cmd.exe 33 PID 296 wrote to memory of 2028 296 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:1256 -
C:\Users\Admin\AppData\Local\Temp\is-CJ9RV.tmp\is-J97VJ.tmp"C:\Users\Admin\AppData\Local\Temp\is-CJ9RV.tmp\is-J97VJ.tmp" /SL4 $70124 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2100927 3184642⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Program Files (x86)\guSearcher\gusearcher85.exe"C:\Program Files (x86)\guSearcher\gusearcher85.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\vTKS97dx1A.exe4⤵
- Executes dropped EXE
PID:1196
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "gusearcher85.exe" /f & erase "C:\Program Files (x86)\guSearcher\gusearcher85.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:296 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "gusearcher85.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2028
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
3.0MB
MD558cae397aec6f7ffcaafdaec5695941f
SHA11852d014dfdfcfff8895d419246643eaaf45ebd3
SHA25633f0da2de793d399d1fc234c51985812bb0f2d1d546d377f2c48520180d9bcfa
SHA512d7898f2562fe9d90eb9d498673af5d02116b782491233dfbdeeb2304d0980c0815b2f75f3aa7f8cdd0c39020c77ae4cc5fc5b034678f5aedfcb801219a73486c
-
Filesize
3.0MB
MD558cae397aec6f7ffcaafdaec5695941f
SHA11852d014dfdfcfff8895d419246643eaaf45ebd3
SHA25633f0da2de793d399d1fc234c51985812bb0f2d1d546d377f2c48520180d9bcfa
SHA512d7898f2562fe9d90eb9d498673af5d02116b782491233dfbdeeb2304d0980c0815b2f75f3aa7f8cdd0c39020c77ae4cc5fc5b034678f5aedfcb801219a73486c
-
Filesize
917KB
MD5f4d82ac5ccb900eb1ced5e8b69fac0c7
SHA1b43f8fa853706d5732c4d77b7a509977ebe78ea3
SHA256a9881bd0cfd544279a707471babeed014cd134268f2e793cecb604d1f9a987ff
SHA51226fa609a47f7d57cc4b00bd861e7ad5441e4f891a76a50f3c8fed8a3ac51868641c1600fe50438c558f5fdd1ae790b1bbb286475e281a7fd46c5b892e110711c
-
Filesize
917KB
MD5f4d82ac5ccb900eb1ced5e8b69fac0c7
SHA1b43f8fa853706d5732c4d77b7a509977ebe78ea3
SHA256a9881bd0cfd544279a707471babeed014cd134268f2e793cecb604d1f9a987ff
SHA51226fa609a47f7d57cc4b00bd861e7ad5441e4f891a76a50f3c8fed8a3ac51868641c1600fe50438c558f5fdd1ae790b1bbb286475e281a7fd46c5b892e110711c
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
3.0MB
MD558cae397aec6f7ffcaafdaec5695941f
SHA11852d014dfdfcfff8895d419246643eaaf45ebd3
SHA25633f0da2de793d399d1fc234c51985812bb0f2d1d546d377f2c48520180d9bcfa
SHA512d7898f2562fe9d90eb9d498673af5d02116b782491233dfbdeeb2304d0980c0815b2f75f3aa7f8cdd0c39020c77ae4cc5fc5b034678f5aedfcb801219a73486c
-
Filesize
917KB
MD5f4d82ac5ccb900eb1ced5e8b69fac0c7
SHA1b43f8fa853706d5732c4d77b7a509977ebe78ea3
SHA256a9881bd0cfd544279a707471babeed014cd134268f2e793cecb604d1f9a987ff
SHA51226fa609a47f7d57cc4b00bd861e7ad5441e4f891a76a50f3c8fed8a3ac51868641c1600fe50438c558f5fdd1ae790b1bbb286475e281a7fd46c5b892e110711c
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c