431c267c1dfadb1e05713c3ebebfb4feddee988b1b30232facf8cd76064e0e1b

Analysis

max time kernel
141s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
14/06/2023, 18:31

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General

Target

setupBKISrv5S.exe
Size

1.3MB
MD5

e1b36d307f9bc01f2ca81316da00cbcd
SHA1

c8d6b3a4f988efab0e01f2ed8ba9dce8edaf4595
SHA256

431c267c1dfadb1e05713c3ebebfb4feddee988b1b30232facf8cd76064e0e1b
SHA512

e3c43e18ef54aec3faf6f96a050d5bbfc8e91628709954812a195b940eee1f09e920e4dbe25338d7c64b3e4aae3f24a6cd12bdedc988fc9f1688906b6dd423b5
SSDEEP

24576:YVu+pYnOHCEcoc3EYekNudik90C5OzFYT6Vmsfht6uhsEnpr0eIvTI/nQP5y:YVu+pYnOYHz9kZgzFVVBJt6u2Enpr0HO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1984	INS167E.tmp

Loads dropped DLL 3 IoCs

pid	Process
1948	setupBKISrv5S.exe
1984	INS167E.tmp
1984	INS167E.tmp

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1984	INS167E.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 1984	1948	setupBKISrv5S.exe	28
PID 1948 wrote to memory of 1984	1948	setupBKISrv5S.exe	28
PID 1948 wrote to memory of 1984	1948	setupBKISrv5S.exe	28
PID 1948 wrote to memory of 1984	1948	setupBKISrv5S.exe	28
PID 1948 wrote to memory of 1984	1948	setupBKISrv5S.exe	28
PID 1948 wrote to memory of 1984	1948	setupBKISrv5S.exe	28
PID 1948 wrote to memory of 1984	1948	setupBKISrv5S.exe	28

C:\Users\Admin\AppData\Local\Temp\setupBKISrv5S.exe
"C:\Users\Admin\AppData\Local\Temp\setupBKISrv5S.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\INS167E.tmp
  C:\Users\Admin\AppData\Local\Temp\INS167E.tmp /SL3 $70122 C:\Users\Admin\AppData\Local\Temp\setupBKISrv5S.exe 1390159 1393338 61952
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1984

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\INS167E.tmp

Filesize
377KB

MD5
ec2a3559ef793d976d3f72252ade0b68

SHA1
1673ad41b3683d9fde4e331ef97711af05c4c014

SHA256
995ca25e8ac883429e67e2985887c2dc122e4d3cca48d6ab5b545e6a896ae2e1

SHA512
a9f77b1735eb88e3ed790a0bb00637a616c33414cbb6f0b582322759a3bea3bf2fd7a334f92c17dd9f1669acdacc7551611ecedb80c11e999ddd120f104355b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\INS167E.tmp

Filesize
377KB

MD5
ec2a3559ef793d976d3f72252ade0b68

SHA1
1673ad41b3683d9fde4e331ef97711af05c4c014

SHA256
995ca25e8ac883429e67e2985887c2dc122e4d3cca48d6ab5b545e6a896ae2e1

SHA512
a9f77b1735eb88e3ed790a0bb00637a616c33414cbb6f0b582322759a3bea3bf2fd7a334f92c17dd9f1669acdacc7551611ecedb80c11e999ddd120f104355b1

Download Submit
\Users\Admin\AppData\Local\Temp\INS167E.tmp

Filesize
377KB

MD5
ec2a3559ef793d976d3f72252ade0b68

SHA1
1673ad41b3683d9fde4e331ef97711af05c4c014

SHA256
995ca25e8ac883429e67e2985887c2dc122e4d3cca48d6ab5b545e6a896ae2e1

SHA512
a9f77b1735eb88e3ed790a0bb00637a616c33414cbb6f0b582322759a3bea3bf2fd7a334f92c17dd9f1669acdacc7551611ecedb80c11e999ddd120f104355b1

Download Submit
\Users\Admin\AppData\Local\Temp\is-5UIA8.tmp\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-5UIA8.tmp\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1948-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1984-65-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1984-67-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/1984-68-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download