67a5cb004d2dfa571833ed14cb51165023c5ece882ac1a091e3148d121991da9

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
03/08/2023, 18:41

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General

Target

56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe
Size

118KB
MD5

56dba4c23ad30288349e35c50a7d9d05
SHA1

58844460e6b365889419dffcf5a76073d14a58e1
SHA256

67a5cb004d2dfa571833ed14cb51165023c5ece882ac1a091e3148d121991da9
SHA512

78e3255b0ac406397b4fc21097b73e45fc9dad66dfc4d67eb373bc066549811c4bcd61f6b558af4e03c5c97c54a27d0715e2f0cf11bb78fc9f73a345717f7e3e
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgpQb6w:z6a+CdOOtEvwDpjczp

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2272	56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2272-54-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012023-65.dat	upx
behavioral1/files/0x0009000000012023-70.dat	upx
behavioral1/memory/2272-69-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3012-71-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012023-80.dat	upx
behavioral1/memory/3012-82-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 3012	2272	56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe	28
PID 2272 wrote to memory of 3012	2272	56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe	28
PID 2272 wrote to memory of 3012	2272	56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe	28
PID 2272 wrote to memory of 3012	2272	56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
118KB

MD5
c8c786362f3a3f052f795369e2adaaf8

SHA1
51b4d955a78fe161b1c6351d938b91304e08e5ff

SHA256
ea0cf9e084867717b20c71bcd2f79ca59a4c186d8511e2c1f7c25eb2a1cabf33

SHA512
d7879b8d4bace070e055c09650fcaa1af705916c6a389476eedb1e4b7b51f1ed6f2662c8e14c47de4211cb6eff1b8f478fb0c171dff565e7ef725bc8cd9a6dcf

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
118KB

MD5
c8c786362f3a3f052f795369e2adaaf8

SHA1
51b4d955a78fe161b1c6351d938b91304e08e5ff

SHA256
ea0cf9e084867717b20c71bcd2f79ca59a4c186d8511e2c1f7c25eb2a1cabf33

SHA512
d7879b8d4bace070e055c09650fcaa1af705916c6a389476eedb1e4b7b51f1ed6f2662c8e14c47de4211cb6eff1b8f478fb0c171dff565e7ef725bc8cd9a6dcf

Download Submit
\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
118KB

MD5
c8c786362f3a3f052f795369e2adaaf8

SHA1
51b4d955a78fe161b1c6351d938b91304e08e5ff

SHA256
ea0cf9e084867717b20c71bcd2f79ca59a4c186d8511e2c1f7c25eb2a1cabf33

SHA512
d7879b8d4bace070e055c09650fcaa1af705916c6a389476eedb1e4b7b51f1ed6f2662c8e14c47de4211cb6eff1b8f478fb0c171dff565e7ef725bc8cd9a6dcf

Download Submit
memory/2272-56-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2272-54-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2272-67-0x0000000001F60000-0x0000000001F70000-memory.dmp

Filesize
64KB

Download
memory/2272-57-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2272-69-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2272-55-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2272-81-0x0000000001F60000-0x0000000001F70000-memory.dmp

Filesize
64KB

Download
memory/3012-71-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-73-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3012-74-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/3012-82-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download