Analysis
-
max time kernel
91s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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.exepUPPVYjB9o.exepid process 4292 file.tmp 4600 KitFiles136.exe 4968 pUPPVYjB9o.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
KitFiles136.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation KitFiles136.exe -
Loads dropped DLL 1 IoCs
Processes:
file.tmppid process 4292 file.tmp -
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\language\is-7EBGO.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-GMGDG.tmp file.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat file.tmp File created C:\Program Files (x86)\Split Files\is-O99UG.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-JIIR2.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-83QVN.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-BUL9O.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-U42OM.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\unins000.dat file.tmp File created C:\Program Files (x86)\Split Files\is-MOUGN.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-6OCNN.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-RCI5V.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-R9SN7.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-MFJDN.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-6JDDQ.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-MA1GK.tmp 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 4352 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
KitFiles136.exepid process 4600 KitFiles136.exe 4600 KitFiles136.exe 4600 KitFiles136.exe 4600 KitFiles136.exe 4600 KitFiles136.exe 4600 KitFiles136.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 4352 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exefile.tmpKitFiles136.execmd.exedescription pid process target process PID 5076 wrote to memory of 4292 5076 file.exe file.tmp PID 5076 wrote to memory of 4292 5076 file.exe file.tmp PID 5076 wrote to memory of 4292 5076 file.exe file.tmp PID 4292 wrote to memory of 4600 4292 file.tmp KitFiles136.exe PID 4292 wrote to memory of 4600 4292 file.tmp KitFiles136.exe PID 4292 wrote to memory of 4600 4292 file.tmp KitFiles136.exe PID 4600 wrote to memory of 4968 4600 KitFiles136.exe pUPPVYjB9o.exe PID 4600 wrote to memory of 4968 4600 KitFiles136.exe pUPPVYjB9o.exe PID 4600 wrote to memory of 4968 4600 KitFiles136.exe pUPPVYjB9o.exe PID 4600 wrote to memory of 4308 4600 KitFiles136.exe cmd.exe PID 4600 wrote to memory of 4308 4600 KitFiles136.exe cmd.exe PID 4600 wrote to memory of 4308 4600 KitFiles136.exe cmd.exe PID 4308 wrote to memory of 4352 4308 cmd.exe taskkill.exe PID 4308 wrote to memory of 4352 4308 cmd.exe taskkill.exe PID 4308 wrote to memory of 4352 4308 cmd.exe taskkill.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:5076 -
C:\Users\Admin\AppData\Local\Temp\is-H4NNJ.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-H4NNJ.tmp\file.tmp" /SL5="$7005E,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:4292 -
C:\Program Files (x86)\Split Files\KitFiles136.exe"C:\Program Files (x86)\Split Files\KitFiles136.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\pUPPVYjB9o.exe4⤵
- Executes dropped EXE
PID:4968 -
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:4308 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "KitFiles136.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4352
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
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c