165f127595bacc919889fca0b3b69a61a3eec84c5c871dc0fd47c52e63146141

Analysis

max time kernel
134s
max time network
146s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
18/07/2023, 13:06

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General

Target

b48324883f15bb_JC.exe
Size

80KB
MD5

b48324883f15bb9dd8fbcce32b2b580e
SHA1

f9d5167bedcfdb032d07381f8b76b8b87a1c7393
SHA256

165f127595bacc919889fca0b3b69a61a3eec84c5c871dc0fd47c52e63146141
SHA512

f380838d272ba7ed11a3229e5c93e81d49449519c0738b9e835e6cef2b4e24774324cea3d536fb8145dd05af9827de00440abc3b8040eaf0d8d65022c9c89595
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalDSnUcL:1nK6a+qdOOtEvwDpjL

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2592	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2640	b48324883f15bb_JC.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2640-54-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x00070000000120e6-65.dat	upx
behavioral1/memory/2640-69-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2592-71-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x00070000000120e6-70.dat	upx
behavioral1/memory/2640-67-0x0000000002020000-0x0000000002030000-memory.dmp	upx
behavioral1/files/0x00070000000120e6-80.dat	upx
behavioral1/memory/2592-81-0x0000000000500000-0x000000000050F311-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 2640 wrote to memory of 2592	2640	b48324883f15bb_JC.exe	28
PID 2640 wrote to memory of 2592	2640	b48324883f15bb_JC.exe	28
PID 2640 wrote to memory of 2592	2640	b48324883f15bb_JC.exe	28
PID 2640 wrote to memory of 2592	2640	b48324883f15bb_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\b48324883f15bb_JC.exe
"C:\Users\Admin\AppData\Local\Temp\b48324883f15bb_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2592

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
80KB

MD5
9162ed68b829d817f6f0bae5b3aa77ad

SHA1
7e0d83ef769645e79718d952c91ea33d6934a59c

SHA256
5a1283a92be84bd2cdecd61bad3d940d9c334c99e25f9473f2096ac43fd65568

SHA512
2e21d7728fd45908f52e96eace9a4b8ee6a7d402ddc57187f1ca3f325dac1d8c157570dc6d731dd2d5e61bcefe6e097f0e23a56218bb3a8ee2fb49f8f0ca4ae5

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

Filesize
80KB

MD5
9162ed68b829d817f6f0bae5b3aa77ad

SHA1
7e0d83ef769645e79718d952c91ea33d6934a59c

SHA256
5a1283a92be84bd2cdecd61bad3d940d9c334c99e25f9473f2096ac43fd65568

SHA512
2e21d7728fd45908f52e96eace9a4b8ee6a7d402ddc57187f1ca3f325dac1d8c157570dc6d731dd2d5e61bcefe6e097f0e23a56218bb3a8ee2fb49f8f0ca4ae5

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

Filesize
80KB

MD5
9162ed68b829d817f6f0bae5b3aa77ad

SHA1
7e0d83ef769645e79718d952c91ea33d6934a59c

SHA256
5a1283a92be84bd2cdecd61bad3d940d9c334c99e25f9473f2096ac43fd65568

SHA512
2e21d7728fd45908f52e96eace9a4b8ee6a7d402ddc57187f1ca3f325dac1d8c157570dc6d731dd2d5e61bcefe6e097f0e23a56218bb3a8ee2fb49f8f0ca4ae5

Download Submit
memory/2592-74-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2592-71-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2592-73-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2592-81-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2640-56-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2640-69-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2640-57-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2640-67-0x0000000002020000-0x0000000002030000-memory.dmp

Filesize
64KB

Download
memory/2640-54-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2640-55-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download