blister | f9508e81f1ac31569646fde9e864e25212457ca62ac768e23fbb95c290950e99

Analysis

max time kernel
37s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
05-09-2022 15:53

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General

Target

c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe
Size

3.4MB
MD5

61a5cbc68cc4f44373f088b68dc77551
SHA1

a5901558d19fac101d8c11bb7a0a07cb2dd26bb5
SHA256

c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd
SHA512

e592e28a6e901030f1d3cba59a6ebe8dc1e6df51c3d3ca7e0344f627dd40e62f99ecf90270ce302962da128942a9aaf952483a52eb7b73b51f28f541bd46b6fc
SSDEEP

98304:UWhQkBPK3tMxUYUZKM7ASJPoJQ8eTY3Tn/jkrmT0:UiQSNOzKM7ASJPX8eTwjkrV

Score

10^/10

blister loader

Malware Config

Signatures

BLISTER
BLISTER is a downloader used to deliver other malware families.
loader blister

Detect Blister loader x32 8 IoCs

loader

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\Dataperformance\FramworkGUI.dll	family_blister_x32
\Users\Admin\AppData\Local\Temp\Dataperformance\FramworkGUI.dll	family_blister_x32
\Users\Admin\AppData\Local\Temp\Dataperformance\FramworkGUI.dll	family_blister_x32
C:\Users\Admin\AppData\Local\Temp\Dataperformance\Storage.dll	family_blister_x32
\Users\Admin\AppData\Local\Temp\Dataperformance\Storage.dll	family_blister_x32
\Users\Admin\AppData\Local\Temp\Dataperformance\Storage.dll	family_blister_x32
behavioral25/memory/1144-67-0x0000000017170000-0x0000000017489000-memory.dmp	family_blister_x32
behavioral25/memory/1724-68-0x0000000017170000-0x0000000017222000-memory.dmp	family_blister_x32

Loads dropped DLL 4 IoCs

Processes:

rundll32.exerundll32.exe

pid process

1144 rundll32.exe
1144 rundll32.exe
1724 rundll32.exe
1724 rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1144	rundll32.exe
1144	rundll32.exe
1724	rundll32.exe
1724	rundll32.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exeRundll32.exeRundll32.exe

description	pid	process	target process
PID 1384 wrote to memory of 996	1384	c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe	Rundll32.exe
PID 1384 wrote to memory of 996	1384	c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe	Rundll32.exe
PID 1384 wrote to memory of 996	1384	c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe	Rundll32.exe
PID 996 wrote to memory of 1144	996	Rundll32.exe	rundll32.exe
PID 996 wrote to memory of 1144	996	Rundll32.exe	rundll32.exe
PID 996 wrote to memory of 1144	996	Rundll32.exe	rundll32.exe
PID 996 wrote to memory of 1144	996	Rundll32.exe	rundll32.exe
PID 996 wrote to memory of 1144	996	Rundll32.exe	rundll32.exe
PID 996 wrote to memory of 1144	996	Rundll32.exe	rundll32.exe
PID 996 wrote to memory of 1144	996	Rundll32.exe	rundll32.exe
PID 1384 wrote to memory of 2028	1384	c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe	Rundll32.exe
PID 1384 wrote to memory of 2028	1384	c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe	Rundll32.exe
PID 1384 wrote to memory of 2028	1384	c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe	Rundll32.exe
PID 2028 wrote to memory of 1724	2028	Rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1724	2028	Rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1724	2028	Rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1724	2028	Rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1724	2028	Rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1724	2028	Rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1724	2028	Rundll32.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe
"C:\Users\Admin\AppData\Local\Temp\c9cc4d95ca1197328a743a41b09c2375d54ac97fcdde5e07bda660396710eccd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\system32\Rundll32.exe
  Rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dataperformance\FramworkGUI.dll,LaunchColorCpl
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\SysWOW64\rundll32.exe
    Rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dataperformance\FramworkGUI.dll,LaunchColorCpl
    3⤵
    - Loads dropped DLL
    PID:1144
- C:\Windows\system32\Rundll32.exe
  Rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dataperformance\Storage.dll,LaunchColorCpl
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\SysWOW64\rundll32.exe
    Rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dataperformance\Storage.dll,LaunchColorCpl
    3⤵
    - Loads dropped DLL
    PID:1724

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\Dataperformance\FramworkGUI.dll

Filesize
3.1MB

MD5
3a9cbd39d977b2b95ee9ee3184953762

SHA1
eed69851b97ecfe6edf9a66439d76adbfc270d3d

SHA256
e7368bc19f746a8eff5a208f1b8ae5b0fe15bf5e9b9c93db3e8be42f87887f30

SHA512
0b2e144141e730351c888b0752e6f9c00a5e77328c027c2ddc25d04d2a866139008550775772a4ff0d1cffcacbd9bfefad9d66c62703302187164c3bc3efc516

Download Submit
C:\Users\Admin\AppData\Local\Temp\Dataperformance\Storage.dll

Filesize
707KB

MD5
007236733e6ea31367c9aa59076d2996

SHA1
3bebd05627fbae2cc4756d07aed2070744981746

SHA256
86b32bcc02284d44a1a124c938257c2e33c04d800ea71991e954b5c661630308

SHA512
abb2582e0237e29850c54ab02c47b853f1cc5142804f50aae77a40dc0e3eebf1cb13b0f81cabc8eb6e54193f659c08cb6c072ba91888b4998fe1998a154a6362

Download Submit
\Users\Admin\AppData\Local\Temp\Dataperformance\FramworkGUI.dll

Filesize
3.1MB

MD5
3a9cbd39d977b2b95ee9ee3184953762

SHA1
eed69851b97ecfe6edf9a66439d76adbfc270d3d

SHA256
e7368bc19f746a8eff5a208f1b8ae5b0fe15bf5e9b9c93db3e8be42f87887f30

SHA512
0b2e144141e730351c888b0752e6f9c00a5e77328c027c2ddc25d04d2a866139008550775772a4ff0d1cffcacbd9bfefad9d66c62703302187164c3bc3efc516

Download Submit
\Users\Admin\AppData\Local\Temp\Dataperformance\FramworkGUI.dll

Filesize
3.1MB

MD5
3a9cbd39d977b2b95ee9ee3184953762

SHA1
eed69851b97ecfe6edf9a66439d76adbfc270d3d

SHA256
e7368bc19f746a8eff5a208f1b8ae5b0fe15bf5e9b9c93db3e8be42f87887f30

SHA512
0b2e144141e730351c888b0752e6f9c00a5e77328c027c2ddc25d04d2a866139008550775772a4ff0d1cffcacbd9bfefad9d66c62703302187164c3bc3efc516

Download Submit
\Users\Admin\AppData\Local\Temp\Dataperformance\Storage.dll

Filesize
707KB

MD5
007236733e6ea31367c9aa59076d2996

SHA1
3bebd05627fbae2cc4756d07aed2070744981746

SHA256
86b32bcc02284d44a1a124c938257c2e33c04d800ea71991e954b5c661630308

SHA512
abb2582e0237e29850c54ab02c47b853f1cc5142804f50aae77a40dc0e3eebf1cb13b0f81cabc8eb6e54193f659c08cb6c072ba91888b4998fe1998a154a6362

Download Submit
\Users\Admin\AppData\Local\Temp\Dataperformance\Storage.dll

Filesize
707KB

MD5
007236733e6ea31367c9aa59076d2996

SHA1
3bebd05627fbae2cc4756d07aed2070744981746

SHA256
86b32bcc02284d44a1a124c938257c2e33c04d800ea71991e954b5c661630308

SHA512
abb2582e0237e29850c54ab02c47b853f1cc5142804f50aae77a40dc0e3eebf1cb13b0f81cabc8eb6e54193f659c08cb6c072ba91888b4998fe1998a154a6362

Download Submit
memory/996-55-0x0000000000000000-mapping.dmp

Download
memory/1144-57-0x0000000000000000-mapping.dmp

Download
memory/1144-58-0x0000000076DC1000-0x0000000076DC3000-memory.dmp

Filesize
8KB

Download
memory/1144-67-0x0000000017170000-0x0000000017489000-memory.dmp

Filesize
3.1MB

Download
memory/1384-54-0x000007FEFC481000-0x000007FEFC483000-memory.dmp

Filesize
8KB

Download
memory/1724-63-0x0000000000000000-mapping.dmp

Download
memory/1724-68-0x0000000017170000-0x0000000017222000-memory.dmp

Filesize
712KB

Download
memory/2028-61-0x0000000000000000-mapping.dmp

Download