bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1

Analysis

max time kernel
96s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
24-05-2022 21:29

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General

Target

bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
Size

3.2MB
MD5

c52f5ca43480573ed5d4b5366fad2be0
SHA1

b3bec5af80d4f81f823a339229a6f4d5059498b7
SHA256

bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1
SHA512

1a57f394f1399da752592972a45790db00afdaed4b5e0d0e3f0ac371bb23a7706ad87849198ad57263ce4f67c1496a737eb333427f87d0e0c562387f1fa0f096

Score

8^/10

aspackv2 bootkit discovery persistence

Malware Config

Signatures

ASPack v2.12-2.42 2 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
\??\c:\ÉñÍ¾\bihustc.exe	aspack_v212_v242
C:\ÉñÍ¾\bihustc.exe	aspack_v212_v242

Executes dropped EXE 1 IoCs

Processes:

bihustc.exe

pid process

1992 bihustc.exe

pid	process
1992	bihustc.exe

Unexpected DNS network traffic destination 30 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description	ioc
Destination IP	114.114.114.114
Destination IP	223.6.6.6
Destination IP	223.5.5.5
Destination IP	223.5.5.5
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	223.6.6.6
Destination IP	223.6.6.6
Destination IP	114.114.114.114
Destination IP	223.6.6.6
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	223.5.5.5
Destination IP	223.6.6.6
Destination IP	223.6.6.6
Destination IP	114.114.114.114
Destination IP	223.6.6.6
Destination IP	223.5.5.5
Destination IP	223.5.5.5
Destination IP	223.6.6.6
Destination IP	114.114.114.114
Destination IP	223.5.5.5
Destination IP	223.6.6.6
Destination IP	114.114.114.114
Destination IP	223.6.6.6
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	223.5.5.5
Destination IP	223.5.5.5

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

Processes:

bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exebihustc.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
File opened for modification	\??\PhysicalDrive0	bihustc.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
5008	4628	WerFault.exe	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
1296	1992	WerFault.exe	bihustc.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exebihustc.exe

pid	process
4628	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
4628	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
1992	bihustc.exe
1992	bihustc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

bihustc.exe

pid process

1992 bihustc.exe

pid	process
1992	bihustc.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exebihustc.exe

pid	process
4628	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
4628	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
1992	bihustc.exe
1992	bihustc.exe
1992	bihustc.exe
1992	bihustc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe

description	pid	process	target process
PID 4628 wrote to memory of 1992	4628	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe	bihustc.exe
PID 4628 wrote to memory of 1992	4628	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe	bihustc.exe
PID 4628 wrote to memory of 1992	4628	bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe	bihustc.exe

C:\Users\Admin\AppData\Local\Temp\bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
"C:\Users\Admin\AppData\Local\Temp\bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 556
  2⤵
  - Program crash
  PID:5008
- \??\c:\ÉñÍ¾\bihustc.exe
  "c:\ÉñÍ¾\bihustc.exe" MOV 4628 C:\Users\Admin\AppData\Local\Temp\bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1.exe
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:1992
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 556
    3⤵
    - Program crash
    PID:1296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4628 -ip 4628
1⤵
PID:4500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1992 -ip 1992
1⤵
PID:340

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\ÉñÍ¾\±Ú»¢ÉñÍ¾C.lnk

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\ÉñÍ¾\Ð¶ÔØ±Ú»¢ÉñÍ¾C.lnk

Filesize
639B

MD5
0ddd1443fa162626d761f1ada8605f5d

SHA1
c07044e5e3042ea33dc20852844c870fecaaae55

SHA256
d33368d625624615c40c7446e2dac4e98c2707928e5a45b7dbb0c4e80a3983eb

SHA512
381c39179f599b6beb996167f3edf04ae596fd6ff821bf2e32ff736d22e617ae074d07400705fa1687767d7eabd8c4bebef1b4f0ed7d41c69dade1b60b4b8caf

Download Submit
C:\Users\Public\Desktop\±Ú»¢ÉñÍ¾C.lnk

Filesize
377B

MD5
aa00db81bc6104ef448a9fd00279748e

SHA1
59512bc8020e06ab7c0a8cf0b2629e805c649b70

SHA256
7f6c69913ee77adcafd90a37827c62a4213d71ce986c625bd3de9d278bc32d81

SHA512
b974a88cc2588fae720c58a4f55639532886b1579f0d2f223833a0e85c5d3f845e685769650145f9c78c0d668bbb585a4934187b82e7a5122a08dcf17799bbd0

Download Submit
C:\ÉñÍ¾\bihustc.exe

Filesize
3.2MB

MD5
c52f5ca43480573ed5d4b5366fad2be0

SHA1
b3bec5af80d4f81f823a339229a6f4d5059498b7

SHA256
bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1

SHA512
1a57f394f1399da752592972a45790db00afdaed4b5e0d0e3f0ac371bb23a7706ad87849198ad57263ce4f67c1496a737eb333427f87d0e0c562387f1fa0f096

Download Submit
\??\c:\ÉñÍ¾\DownloadTemp\LoginServerList.xml

Filesize
7KB

MD5
c39b6868c3dfdd813db1804d71d1b4ca

SHA1
ecd4dc6be0e4919adcd0370b4062fa3a840a576f

SHA256
055a8abebe2f2fc6bd9cf2d87bdcfcffdbf3c6563cddabb09840a4d126e361f6

SHA512
13beaa0edbe24f0c5a73b45be6c43e65b54f07443d8e234908e5fb06d7d24485c6a5d89366b15398dfd065fbc072c35957d2c635068ebc227707237b4f8effa7

Download Submit
\??\c:\ÉñÍ¾\DownloadTemp\mtdl_OEMSVRLIST0_tmp.dat

Filesize
7KB

MD5
c39b6868c3dfdd813db1804d71d1b4ca

SHA1
ecd4dc6be0e4919adcd0370b4062fa3a840a576f

SHA256
055a8abebe2f2fc6bd9cf2d87bdcfcffdbf3c6563cddabb09840a4d126e361f6

SHA512
13beaa0edbe24f0c5a73b45be6c43e65b54f07443d8e234908e5fb06d7d24485c6a5d89366b15398dfd065fbc072c35957d2c635068ebc227707237b4f8effa7

Download Submit
\??\c:\ÉñÍ¾\DownloadTemp\mtdl_OEMSVRLIST1_tmp.dat

Filesize
7KB

MD5
c39b6868c3dfdd813db1804d71d1b4ca

SHA1
ecd4dc6be0e4919adcd0370b4062fa3a840a576f

SHA256
055a8abebe2f2fc6bd9cf2d87bdcfcffdbf3c6563cddabb09840a4d126e361f6

SHA512
13beaa0edbe24f0c5a73b45be6c43e65b54f07443d8e234908e5fb06d7d24485c6a5d89366b15398dfd065fbc072c35957d2c635068ebc227707237b4f8effa7

Download Submit
\??\c:\ÉñÍ¾\DownloadTemp\mtdl_OEMSVRLIST4_tmp.dat

Filesize
7KB

MD5
c39b6868c3dfdd813db1804d71d1b4ca

SHA1
ecd4dc6be0e4919adcd0370b4062fa3a840a576f

SHA256
055a8abebe2f2fc6bd9cf2d87bdcfcffdbf3c6563cddabb09840a4d126e361f6

SHA512
13beaa0edbe24f0c5a73b45be6c43e65b54f07443d8e234908e5fb06d7d24485c6a5d89366b15398dfd065fbc072c35957d2c635068ebc227707237b4f8effa7

Download Submit
\??\c:\ÉñÍ¾\Setting\GameStartSetting.xml

Filesize
1KB

MD5
cb675e6b2f7085ba2af2b1c17fc0b4f0

SHA1
df50a8be72652acf399e1c50ac1fcce019c6ade5

SHA256
b59c9bc5f35ca2e747a5a67267ee3c467b3319262e9f51219e537f09562fcc65

SHA512
85e72a0554ff70d0233249bf4dd8509585ded52c4a6348fb6aa3144e2a14fc7750a65354e4614e917d8c7e9e483d1705ea674867fe09dc114e17f8a79054a6bb

Download Submit
\??\c:\ÉñÍ¾\bihustc.exe

Filesize
3.2MB

MD5
c52f5ca43480573ed5d4b5366fad2be0

SHA1
b3bec5af80d4f81f823a339229a6f4d5059498b7

SHA256
bbedadea5939a3485a101a7aa0acc28b9295f492741c2b9edff8672b755c0af1

SHA512
1a57f394f1399da752592972a45790db00afdaed4b5e0d0e3f0ac371bb23a7706ad87849198ad57263ce4f67c1496a737eb333427f87d0e0c562387f1fa0f096

Download Submit
memory/1992-139-0x0000000000400000-0x00000000008BB000-memory.dmp

Filesize
4.7MB

Download
memory/1992-138-0x0000000000400000-0x00000000008BB000-memory.dmp

Filesize
4.7MB

Download
memory/1992-137-0x0000000000400000-0x00000000008BB000-memory.dmp

Filesize
4.7MB

Download
memory/1992-133-0x0000000000000000-mapping.dmp

Download
memory/1992-148-0x0000000000400000-0x00000000008BB000-memory.dmp

Filesize
4.7MB

Download
memory/4628-136-0x0000000000400000-0x00000000008BB000-memory.dmp

Filesize
4.7MB

Download
memory/4628-130-0x0000000000400000-0x00000000008BB000-memory.dmp

Filesize
4.7MB

Download
memory/4628-132-0x0000000000400000-0x00000000008BB000-memory.dmp

Filesize
4.7MB

Download
memory/4628-131-0x0000000000400000-0x00000000008BB000-memory.dmp

Filesize
4.7MB

Download