b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137

General

Target

b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe
Size

268KB
MD5

ed19e1a621eba1a37ad406075a6db9d7
SHA1

e23ce29fa6a15f9eb167f3db5731fc2af096edb6
SHA256

b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137
SHA512

86a63aa8b8c1dd34ae6ee41ab90ac73f4a9f87b8b74e75f14abd56ef1ec3e83b5a29891234c2ffdea6470208f2ba98e4c7cfca7feecf6873e0b8b57a36ece9aa
SSDEEP

1536:N4eK+IFjWfoPbuaTRM3nFkwHbaA3LL0idWwiQcmWkF:G+IF6foPCaTRMXbaev0FQcmWk

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	audiohd.exe

Executes dropped EXE 1 IoCs

pid	Process
4304	audiohd.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	audiohd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3080	b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe
4304	audiohd.exe
3956	powershell.exe
3956	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3080	b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe
Token: SeDebugPrivilege	4304	audiohd.exe
Token: SeDebugPrivilege	3956	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3080 wrote to memory of 4304	3080	b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe	87
PID 3080 wrote to memory of 4304	3080	b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe	87
PID 3080 wrote to memory of 4304	3080	b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe	87
PID 4304 wrote to memory of 3956	4304	audiohd.exe	90
PID 4304 wrote to memory of 3956	4304	audiohd.exe	90
PID 4304 wrote to memory of 3956	4304	audiohd.exe	90

C:\Users\Admin\AppData\Local\Temp\b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe
"C:\Users\Admin\AppData\Local\Temp\b1dec4e4ed1ceaf448565d0778995175ad44941d6f617fcd9df00f6d43d68137.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3080
- C:\Users\Admin\AppData\Local\Microsoft\audiohd.exe
  "C:\Users\Admin\AppData\Local\Microsoft\audiohd.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4304
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-Type -Path "C:\Users\Admin\AppData\Local\Microsoft\local.cs"; [LocalServ]::Listen()
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\audiohd.exe

Filesize
276KB

MD5
a9591e257bdbcf7369c1693adde4885b

SHA1
637adcc743cfc645ac3706e480fd05feacafa9ec

SHA256
cbd40162151a4c03ad88b903014f8ce634bc6f0d785ddecfd060e727faeda278

SHA512
f05cc6799f79bd6cde2cc380c4b0bdad479b78c1f6a77e2ecdeef7d60af6ee61b619e89cd8bb33c1fb9c9f75594873ec5660808f3de288e0209199274fbc37e0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nusckpl4.btq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3080-1-0x0000000000B50000-0x0000000000B66000-memory.dmp

Filesize
88KB

Download
memory/3080-2-0x00000000059E0000-0x0000000005F84000-memory.dmp

Filesize
5.6MB

Download
memory/3080-3-0x0000000005530000-0x00000000055CC000-memory.dmp

Filesize
624KB

Download
memory/3080-0-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/3956-39-0x0000000004B90000-0x0000000004BAE000-memory.dmp

Filesize
120KB

Download
memory/3956-36-0x0000000005840000-0x0000000005B94000-memory.dmp

Filesize
3.3MB

Download
memory/3956-20-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3956-21-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3956-22-0x00000000050F0000-0x0000000005718000-memory.dmp

Filesize
6.2MB

Download
memory/3956-23-0x0000000004E30000-0x0000000004E52000-memory.dmp

Filesize
136KB

Download
memory/3956-24-0x0000000004FD0000-0x0000000005036000-memory.dmp

Filesize
408KB

Download
memory/3956-25-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/3956-45-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3956-19-0x00000000024F0000-0x0000000002526000-memory.dmp

Filesize
216KB

Download
memory/3956-42-0x00000000063E0000-0x00000000063FA000-memory.dmp

Filesize
104KB

Download
memory/3956-41-0x00000000074F0000-0x0000000007B6A000-memory.dmp

Filesize
6.5MB

Download
memory/3956-40-0x0000000005F20000-0x0000000005F6C000-memory.dmp

Filesize
304KB

Download
memory/4304-16-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/4304-38-0x00000000061E0000-0x00000000061EA000-memory.dmp

Filesize
40KB

Download
memory/4304-37-0x0000000006BD0000-0x0000000006C62000-memory.dmp

Filesize
584KB

Download
memory/4304-17-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/4304-46-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/4304-47-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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