28cbde718196e338f07826552d54c2770b8867e9660d88069fd0891e5f61dfc6

General

Target

vnc-E4_4_2-x86_x64_win32.exe
Size

5.0MB
MD5

5a7668c3617dfa470aef4a83ee98d5ff
SHA1

96f0f3191062aa55e72917c8ff8708df4533ed32
SHA256

28cbde718196e338f07826552d54c2770b8867e9660d88069fd0891e5f61dfc6
SHA512

a7f1a464134cc9440248797e36e84c7b28859a01cd70b322c40d17287601db657f4137c5ef74b11de754a5d3b24c7708e552b706a5f6e53330aca77b21a4822c
SSDEEP

98304:6lRZnybJ88KdUyJZfOFQEUB8iWZRN39S4URlW2PusY6yt4YCcKzbNGvsnHNS:ozRUyJZmFkBmDw4sc68xCcKz/N

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2004	vnc-E4_4_2-x86_x64_win32.tmp
2860	vncconfig.exe

Loads dropped DLL 4 IoCs

pid	Process
2896	vnc-E4_4_2-x86_x64_win32.exe
2004	vnc-E4_4_2-x86_x64_win32.tmp
2004	vnc-E4_4_2-x86_x64_win32.tmp
2004	vnc-E4_4_2-x86_x64_win32.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
2004	vnc-E4_4_2-x86_x64_win32.tmp

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2004	2896	vnc-E4_4_2-x86_x64_win32.exe	28
PID 2896 wrote to memory of 2004	2896	vnc-E4_4_2-x86_x64_win32.exe	28
PID 2896 wrote to memory of 2004	2896	vnc-E4_4_2-x86_x64_win32.exe	28
PID 2896 wrote to memory of 2004	2896	vnc-E4_4_2-x86_x64_win32.exe	28
PID 2896 wrote to memory of 2004	2896	vnc-E4_4_2-x86_x64_win32.exe	28
PID 2896 wrote to memory of 2004	2896	vnc-E4_4_2-x86_x64_win32.exe	28
PID 2896 wrote to memory of 2004	2896	vnc-E4_4_2-x86_x64_win32.exe	28
PID 2004 wrote to memory of 2860	2004	vnc-E4_4_2-x86_x64_win32.tmp	29
PID 2004 wrote to memory of 2860	2004	vnc-E4_4_2-x86_x64_win32.tmp	29
PID 2004 wrote to memory of 2860	2004	vnc-E4_4_2-x86_x64_win32.tmp	29
PID 2004 wrote to memory of 2860	2004	vnc-E4_4_2-x86_x64_win32.tmp	29

C:\Users\Admin\AppData\Local\Temp\vnc-E4_4_2-x86_x64_win32.exe
"C:\Users\Admin\AppData\Local\Temp\vnc-E4_4_2-x86_x64_win32.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\is-KBR4O.tmp\vnc-E4_4_2-x86_x64_win32.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-KBR4O.tmp\vnc-E4_4_2-x86_x64_win32.tmp" /SL5="$80122,5022000,53248,C:\Users\Admin\AppData\Local\Temp\vnc-E4_4_2-x86_x64_win32.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:2004
- - C:\Users\Admin\AppData\Local\Temp\is-8VH9U.tmp\vncconfig.exe
    "C:\Users\Admin\AppData\Local\Temp\is-8VH9U.tmp\vncconfig.exe" -checkLicense
    3⤵
    - Executes dropped EXE
    PID:2860

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\is-8VH9U.tmp\vncconfig.exe

Filesize
777KB

MD5
a4e433791285ea17ec3f4c43b37629f8

SHA1
73fbe682459dee8679895d10ba4231898e8bb040

SHA256
9585c0a7186e4cd43240f4b79f083c2b0afa45244a25a6b8212361d36ae548c9

SHA512
cbe760aa48901aafe1eba241b6795e4bb9c7b0007e226b0bee05a78e42dae161454eedfeb0963e7ef89ef2936b60e53855a0d3eac7939c6c41888873c8cada01

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KBR4O.tmp\vnc-E4_4_2-x86_x64_win32.tmp

Filesize
665KB

MD5
9e30ab5e3f6b43f69f928e6b4fcfd604

SHA1
b110f04114c52f2439715cbad3769250dbcdb1b3

SHA256
affbe7f0320f9602d8c51468ecb7bc7960df4f62ab1a36c05ac2fe2816d175ba

SHA512
8d751d8c8023bbd54ea2ea0969ad9f379d8bf1066980fdd58007e778bdf654e4e13264ac8917be91ac8583ea9ae5536ca600530f413cbd887c234ec60be5a45d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KBR4O.tmp\vnc-E4_4_2-x86_x64_win32.tmp

Filesize
665KB

MD5
9e30ab5e3f6b43f69f928e6b4fcfd604

SHA1
b110f04114c52f2439715cbad3769250dbcdb1b3

SHA256
affbe7f0320f9602d8c51468ecb7bc7960df4f62ab1a36c05ac2fe2816d175ba

SHA512
8d751d8c8023bbd54ea2ea0969ad9f379d8bf1066980fdd58007e778bdf654e4e13264ac8917be91ac8583ea9ae5536ca600530f413cbd887c234ec60be5a45d

Download Submit
\Users\Admin\AppData\Local\Temp\is-8VH9U.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-8VH9U.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-8VH9U.tmp\vncconfig.exe

Filesize
777KB

MD5
a4e433791285ea17ec3f4c43b37629f8

SHA1
73fbe682459dee8679895d10ba4231898e8bb040

SHA256
9585c0a7186e4cd43240f4b79f083c2b0afa45244a25a6b8212361d36ae548c9

SHA512
cbe760aa48901aafe1eba241b6795e4bb9c7b0007e226b0bee05a78e42dae161454eedfeb0963e7ef89ef2936b60e53855a0d3eac7939c6c41888873c8cada01

Download Submit
\Users\Admin\AppData\Local\Temp\is-KBR4O.tmp\vnc-E4_4_2-x86_x64_win32.tmp

Filesize
665KB

MD5
9e30ab5e3f6b43f69f928e6b4fcfd604

SHA1
b110f04114c52f2439715cbad3769250dbcdb1b3

SHA256
affbe7f0320f9602d8c51468ecb7bc7960df4f62ab1a36c05ac2fe2816d175ba

SHA512
8d751d8c8023bbd54ea2ea0969ad9f379d8bf1066980fdd58007e778bdf654e4e13264ac8917be91ac8583ea9ae5536ca600530f413cbd887c234ec60be5a45d

Download Submit
memory/2004-62-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2004-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2004-79-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2896-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2896-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing