Analysis
-
max time kernel
56s -
max time network
57s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
10-01-2023 16:31
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
General
-
Target
file.exe
-
Size
1.2MB
-
MD5
84fb0906d5d61122c46a7188de5c7171
-
SHA1
0a8e13e3d8691e2c036c4dd83a2391e481e53a36
-
SHA256
f0448e6c878d844a9ca51d04e8bdcbf94432271017824e3c212aaaf2c2a7efd9
-
SHA512
52d07a251cb62dc22a334dad4ca40cfd607de89c5a94e925b50ea9a4ec1c4d1572da812b5f82e6c08183e1f0c49cc436e39cf1675e6966e92d41e74f0df0f7ae
-
SSDEEP
24576:R20fubHm04hvM9Rnvrz3BhyZEJU/V+xYZlnErLVFuFCycSkl5l/Hld:R2DG04hEnnvxhyyJwAxdVFuFCtl5V
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
-
Executes dropped EXE 3 IoCs
Processes:
file.tmpKitFiles136.exe6kgBpfA4yaSYa.exepid process 1352 file.tmp 548 KitFiles136.exe 596 6kgBpfA4yaSYa.exe -
Loads dropped DLL 6 IoCs
Processes:
file.exefile.tmpKitFiles136.exepid process 1232 file.exe 1352 file.tmp 1352 file.tmp 1352 file.tmp 1352 file.tmp 548 KitFiles136.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
Processes:
file.tmpdescription ioc process File created C:\Program Files (x86)\Split Files\unins000.dat file.tmp File created C:\Program Files (x86)\Split Files\is-9HTCL.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-2VQ73.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-IQD20.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-7EUPO.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-9M80T.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-2JVB7.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-Q1D0E.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-L983H.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-6EBN9.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-T9K3R.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-BN045.tmp file.tmp File opened for modification C:\Program Files (x86)\Split Files\KitFiles136.exe file.tmp File created C:\Program Files (x86)\Split Files\language\is-48UF3.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-DI8MD.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-LUN46.tmp file.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat file.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
Processes:
taskkill.exepid process 1924 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
KitFiles136.exepid process 548 KitFiles136.exe 548 KitFiles136.exe 548 KitFiles136.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1924 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
file.exefile.tmpKitFiles136.execmd.exedescription pid process target process PID 1232 wrote to memory of 1352 1232 file.exe file.tmp PID 1232 wrote to memory of 1352 1232 file.exe file.tmp PID 1232 wrote to memory of 1352 1232 file.exe file.tmp PID 1232 wrote to memory of 1352 1232 file.exe file.tmp PID 1232 wrote to memory of 1352 1232 file.exe file.tmp PID 1232 wrote to memory of 1352 1232 file.exe file.tmp PID 1232 wrote to memory of 1352 1232 file.exe file.tmp PID 1352 wrote to memory of 548 1352 file.tmp KitFiles136.exe PID 1352 wrote to memory of 548 1352 file.tmp KitFiles136.exe PID 1352 wrote to memory of 548 1352 file.tmp KitFiles136.exe PID 1352 wrote to memory of 548 1352 file.tmp KitFiles136.exe PID 548 wrote to memory of 596 548 KitFiles136.exe 6kgBpfA4yaSYa.exe PID 548 wrote to memory of 596 548 KitFiles136.exe 6kgBpfA4yaSYa.exe PID 548 wrote to memory of 596 548 KitFiles136.exe 6kgBpfA4yaSYa.exe PID 548 wrote to memory of 596 548 KitFiles136.exe 6kgBpfA4yaSYa.exe PID 548 wrote to memory of 1068 548 KitFiles136.exe cmd.exe PID 548 wrote to memory of 1068 548 KitFiles136.exe cmd.exe PID 548 wrote to memory of 1068 548 KitFiles136.exe cmd.exe PID 548 wrote to memory of 1068 548 KitFiles136.exe cmd.exe PID 1068 wrote to memory of 1924 1068 cmd.exe taskkill.exe PID 1068 wrote to memory of 1924 1068 cmd.exe taskkill.exe PID 1068 wrote to memory of 1924 1068 cmd.exe taskkill.exe PID 1068 wrote to memory of 1924 1068 cmd.exe taskkill.exe
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:1232 -
C:\Users\Admin\AppData\Local\Temp\is-CP0U5.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-CP0U5.tmp\file.tmp" /SL5="$A0124,1042308,51712,C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1352 -
C:\Program Files (x86)\Split Files\KitFiles136.exe"C:\Program Files (x86)\Split Files\KitFiles136.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:548 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\6kgBpfA4yaSYa.exe4⤵
- Executes dropped EXE
PID:596 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "KitFiles136.exe" /f & erase "C:\Program Files (x86)\Split Files\KitFiles136.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1068 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "KitFiles136.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1924
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.8MB
MD5131f65a63a89e187f3186e5722657af7
SHA1410b704eb36a64f9b7c4374b6b5d7c430d949ff7
SHA256b72411fdbe8dc47bdb23a0d4354940e800cd862f1f3b1cf29677d6bf854fcb3c
SHA512a36da77b160a169f9bf919b0d8b2e8c4748700c119cfb76c009bcc4e992db138d1be41e3b6035931d54ef79e482c262d0ab4d8dd165bddc331a3e8916bc963d8
-
Filesize
1.8MB
MD5131f65a63a89e187f3186e5722657af7
SHA1410b704eb36a64f9b7c4374b6b5d7c430d949ff7
SHA256b72411fdbe8dc47bdb23a0d4354940e800cd862f1f3b1cf29677d6bf854fcb3c
SHA512a36da77b160a169f9bf919b0d8b2e8c4748700c119cfb76c009bcc4e992db138d1be41e3b6035931d54ef79e482c262d0ab4d8dd165bddc331a3e8916bc963d8
-
Filesize
692KB
MD5011df348d33aeb3103be711e7aaad000
SHA1eff06d4777d24ab7c2384737b846b7df7c9dd5ae
SHA2564f50389dd834b3268fcc673f791d82a61142eeb7baaa54a03668516df18507ef
SHA512e4b76ac1058880a8ba633f0ff37657594a92231cc6093b80dc6c3617d3edd045f1a3592c2b04cf5acbdbb599d2e4b9e079a47e92692912f4f0d7d189dd14b375
-
Filesize
692KB
MD5011df348d33aeb3103be711e7aaad000
SHA1eff06d4777d24ab7c2384737b846b7df7c9dd5ae
SHA2564f50389dd834b3268fcc673f791d82a61142eeb7baaa54a03668516df18507ef
SHA512e4b76ac1058880a8ba633f0ff37657594a92231cc6093b80dc6c3617d3edd045f1a3592c2b04cf5acbdbb599d2e4b9e079a47e92692912f4f0d7d189dd14b375
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
1.8MB
MD5131f65a63a89e187f3186e5722657af7
SHA1410b704eb36a64f9b7c4374b6b5d7c430d949ff7
SHA256b72411fdbe8dc47bdb23a0d4354940e800cd862f1f3b1cf29677d6bf854fcb3c
SHA512a36da77b160a169f9bf919b0d8b2e8c4748700c119cfb76c009bcc4e992db138d1be41e3b6035931d54ef79e482c262d0ab4d8dd165bddc331a3e8916bc963d8
-
Filesize
692KB
MD5011df348d33aeb3103be711e7aaad000
SHA1eff06d4777d24ab7c2384737b846b7df7c9dd5ae
SHA2564f50389dd834b3268fcc673f791d82a61142eeb7baaa54a03668516df18507ef
SHA512e4b76ac1058880a8ba633f0ff37657594a92231cc6093b80dc6c3617d3edd045f1a3592c2b04cf5acbdbb599d2e4b9e079a47e92692912f4f0d7d189dd14b375
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c