Analysis
-
max time kernel
65s -
max time network
68s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
20/11/2022, 20:32
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
-
Target
file.exe
-
Size
2.4MB
-
MD5
7b668440803e4e9e55c2fe7ea57066db
-
SHA1
dfa2b36a314c7ef56700e955720c9c4f0a6a7d8d
-
SHA256
5a042f9d24f109b1a9a2a23fb68378dac92c30bbabb037239408f3f3fa92bed2
-
SHA512
c7bf7c59aeb9534aa0aacac4db62dee6fa8b3a4c350ba781db8a0259120a45aff2b64437a6780347ee3d15c036f2b9a95b183fef733270d55b79e9808a2a71e4
-
SSDEEP
49152:q2CU3arjtTbLhI3nL44MVvlVLdqE62Q2Gi3X+k9jjdzxbKjJhVavutUxVkBaFwnm:rR3cTK3L44+NeGQ6Xv9FxihVaGtUxVkq
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
-
Executes dropped EXE 3 IoCs
pid Process 1956 is-CJ4AN.tmp 984 gusearcher85.exe 2036 nY4hBR6PC.exe -
Loads dropped DLL 6 IoCs
pid Process 364 file.exe 1956 is-CJ4AN.tmp 1956 is-CJ4AN.tmp 1956 is-CJ4AN.tmp 1956 is-CJ4AN.tmp 984 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 opened for modification C:\Program Files (x86)\guSearcher\unins000.dat is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-GP78Q.tmp is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-O3M7L.tmp is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-1KJQE.tmp is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-38645.tmp is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-8ILNL.tmp is-CJ4AN.tmp File opened for modification C:\Program Files (x86)\guSearcher\gusearcher85.exe is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\unins000.dat is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-B04QI.tmp is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-29ELH.tmp is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-JE6HM.tmp is-CJ4AN.tmp File created C:\Program Files (x86)\guSearcher\is-FH4DF.tmp is-CJ4AN.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 1992 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 984 gusearcher85.exe 984 gusearcher85.exe 984 gusearcher85.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1992 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 364 wrote to memory of 1956 364 file.exe 26 PID 364 wrote to memory of 1956 364 file.exe 26 PID 364 wrote to memory of 1956 364 file.exe 26 PID 364 wrote to memory of 1956 364 file.exe 26 PID 364 wrote to memory of 1956 364 file.exe 26 PID 364 wrote to memory of 1956 364 file.exe 26 PID 364 wrote to memory of 1956 364 file.exe 26 PID 1956 wrote to memory of 984 1956 is-CJ4AN.tmp 27 PID 1956 wrote to memory of 984 1956 is-CJ4AN.tmp 27 PID 1956 wrote to memory of 984 1956 is-CJ4AN.tmp 27 PID 1956 wrote to memory of 984 1956 is-CJ4AN.tmp 27 PID 984 wrote to memory of 2036 984 gusearcher85.exe 28 PID 984 wrote to memory of 2036 984 gusearcher85.exe 28 PID 984 wrote to memory of 2036 984 gusearcher85.exe 28 PID 984 wrote to memory of 2036 984 gusearcher85.exe 28 PID 984 wrote to memory of 1412 984 gusearcher85.exe 31 PID 984 wrote to memory of 1412 984 gusearcher85.exe 31 PID 984 wrote to memory of 1412 984 gusearcher85.exe 31 PID 984 wrote to memory of 1412 984 gusearcher85.exe 31 PID 1412 wrote to memory of 1992 1412 cmd.exe 33 PID 1412 wrote to memory of 1992 1412 cmd.exe 33 PID 1412 wrote to memory of 1992 1412 cmd.exe 33 PID 1412 wrote to memory of 1992 1412 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:364 -
C:\Users\Admin\AppData\Local\Temp\is-L954J.tmp\is-CJ4AN.tmp"C:\Users\Admin\AppData\Local\Temp\is-L954J.tmp\is-CJ4AN.tmp" /SL4 $60126 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2240260 3184642⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1956 -
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:984 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\nY4hBR6PC.exe4⤵
- Executes dropped EXE
PID:2036
-
-
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:1412 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "gusearcher85.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1992
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
3.2MB
MD55df6b382dfaba0f2bce400d5ce648e65
SHA168a345a0b16251d9f1548bf1b491f3287fe51db0
SHA2569b0e2f759366e650d66c5a293eda8bb4f37b4d17129a6c564ec9b04843abcaa4
SHA5125c30e9f1ad3ddd0bea5afcb3282d6dba5c747a3a727e841660b2e2ea20c8511635c84082d0f1ed75544f40dcc23d4109bffdb1fb696419a9545ad003b13f1fa7
-
Filesize
3.2MB
MD55df6b382dfaba0f2bce400d5ce648e65
SHA168a345a0b16251d9f1548bf1b491f3287fe51db0
SHA2569b0e2f759366e650d66c5a293eda8bb4f37b4d17129a6c564ec9b04843abcaa4
SHA5125c30e9f1ad3ddd0bea5afcb3282d6dba5c747a3a727e841660b2e2ea20c8511635c84082d0f1ed75544f40dcc23d4109bffdb1fb696419a9545ad003b13f1fa7
-
Filesize
917KB
MD5f4d82ac5ccb900eb1ced5e8b69fac0c7
SHA1b43f8fa853706d5732c4d77b7a509977ebe78ea3
SHA256a9881bd0cfd544279a707471babeed014cd134268f2e793cecb604d1f9a987ff
SHA51226fa609a47f7d57cc4b00bd861e7ad5441e4f891a76a50f3c8fed8a3ac51868641c1600fe50438c558f5fdd1ae790b1bbb286475e281a7fd46c5b892e110711c
-
Filesize
917KB
MD5f4d82ac5ccb900eb1ced5e8b69fac0c7
SHA1b43f8fa853706d5732c4d77b7a509977ebe78ea3
SHA256a9881bd0cfd544279a707471babeed014cd134268f2e793cecb604d1f9a987ff
SHA51226fa609a47f7d57cc4b00bd861e7ad5441e4f891a76a50f3c8fed8a3ac51868641c1600fe50438c558f5fdd1ae790b1bbb286475e281a7fd46c5b892e110711c
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
3.2MB
MD55df6b382dfaba0f2bce400d5ce648e65
SHA168a345a0b16251d9f1548bf1b491f3287fe51db0
SHA2569b0e2f759366e650d66c5a293eda8bb4f37b4d17129a6c564ec9b04843abcaa4
SHA5125c30e9f1ad3ddd0bea5afcb3282d6dba5c747a3a727e841660b2e2ea20c8511635c84082d0f1ed75544f40dcc23d4109bffdb1fb696419a9545ad003b13f1fa7
-
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