fec27a0b0cb9aed90fe90f6364a14b93ac1f642aae5981946beb796af22c9b03

Analysis

max time kernel
141s
max time network
144s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
19-07-2023 14:45

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General

Target

ef20376b3119a4exe_JC.exe
Size

98KB
MD5

ef20376b3119a492e91ff14107ca656e
SHA1

a086a2f2afc986e6522756110e8b237d2b27fb5e
SHA256

fec27a0b0cb9aed90fe90f6364a14b93ac1f642aae5981946beb796af22c9b03
SHA512

0c438dba7bec5c80aba609edb6ba04398aeda93e3cd9cd4b1dbd5b57a678a245f90fff592a40646c40f0254c3ac5c54f9bece4471589ae8a58df27058abb4c24
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpQbCJjLyVV:AnBdOOtEvwDpj6z/

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2800	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2216	ef20376b3119a4exe_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2216-54-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00080000000120e6-65.dat	upx
behavioral1/memory/2216-68-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00080000000120e6-70.dat	upx
behavioral1/memory/2800-72-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00080000000120e6-80.dat	upx
behavioral1/memory/2800-81-0x0000000000500000-0x000000000050F000-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 2216 wrote to memory of 2800	2216	ef20376b3119a4exe_JC.exe	28
PID 2216 wrote to memory of 2800	2216	ef20376b3119a4exe_JC.exe	28
PID 2216 wrote to memory of 2800	2216	ef20376b3119a4exe_JC.exe	28
PID 2216 wrote to memory of 2800	2216	ef20376b3119a4exe_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\ef20376b3119a4exe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\ef20376b3119a4exe_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2800

Network

MITRE ATT&CK Enterprise v6

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
98KB

MD5
5a429836e6e823177adaf27b1d99ae12

SHA1
a7c97fa355ebfd32d93bff47534211631c1c0781

SHA256
f9fab11bf1395f9a0a1b25bb250ef2565a5f1c43ebff3cb87946f4f361aacb33

SHA512
7104300dd5501d5d5221fe8ea0719f7166ff5909bc596216cb3e0f6ea5a45f9f15bb1ae68acb92fc174bb911ee61a1637add9ac3a353ee42085ba7e345402d43

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

Filesize
98KB

MD5
5a429836e6e823177adaf27b1d99ae12

SHA1
a7c97fa355ebfd32d93bff47534211631c1c0781

SHA256
f9fab11bf1395f9a0a1b25bb250ef2565a5f1c43ebff3cb87946f4f361aacb33

SHA512
7104300dd5501d5d5221fe8ea0719f7166ff5909bc596216cb3e0f6ea5a45f9f15bb1ae68acb92fc174bb911ee61a1637add9ac3a353ee42085ba7e345402d43

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

Filesize
98KB

MD5
5a429836e6e823177adaf27b1d99ae12

SHA1
a7c97fa355ebfd32d93bff47534211631c1c0781

SHA256
f9fab11bf1395f9a0a1b25bb250ef2565a5f1c43ebff3cb87946f4f361aacb33

SHA512
7104300dd5501d5d5221fe8ea0719f7166ff5909bc596216cb3e0f6ea5a45f9f15bb1ae68acb92fc174bb911ee61a1637add9ac3a353ee42085ba7e345402d43

Download Submit
memory/2216-68-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2216-57-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2216-69-0x0000000002480000-0x000000000248F000-memory.dmp

Filesize
60KB

Download
memory/2216-54-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2216-56-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2216-55-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2800-72-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2800-73-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2800-74-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2800-81-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download