4a338a75360d288e6b4fa542b39f45900c33aa433f0cfa21b45079fe900a64e7

General

Target

2023 Customer Information Export(1).doc.exe
Size

690KB
MD5

decf06be9f0c0eed2d93bf190ba4b99b
SHA1

e4aa992415440850a9e0a17b2038c066d952bf4f
SHA256

4d845e9e862b6cc61cf4909f4c16c2330483ba62d32c977c0080020a841bf3e1
SHA512

a00a7ffba5a666d19fdeccf7c8520e1bee55f72bbe6e4802565b131040adfeb5e1590af23d8d066ef2d38b63aeb51ac1bbc203b07c7ccc252b8d78315ece8ec3
SSDEEP

12288:s44lO9ZVrJDoPAYzy8DjzzUl1XW9OSJLIF:s44lkl0N2kzzu1XW9OOMF

Score

7^/10

persistence

Malware Config

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation	2023 Customer Information Export(1).doc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ZYybOms = "C:\\Users\\Admin\\AppData\\Roaming\\ZYybOms\\ZYybOms.exe"	RegSvcs.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
49	api.ipify.org
50	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1804 set thread context of 3972	1804	2023 Customer Information Export(1).doc.exe	97

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4940	3972	WerFault.exe	97

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
1000	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3972	RegSvcs.exe
3972	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3972	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 1000	1804	2023 Customer Information Export(1).doc.exe	95
PID 1804 wrote to memory of 1000	1804	2023 Customer Information Export(1).doc.exe	95
PID 1804 wrote to memory of 1000	1804	2023 Customer Information Export(1).doc.exe	95
PID 1804 wrote to memory of 3972	1804	2023 Customer Information Export(1).doc.exe	97
PID 1804 wrote to memory of 3972	1804	2023 Customer Information Export(1).doc.exe	97
PID 1804 wrote to memory of 3972	1804	2023 Customer Information Export(1).doc.exe	97
PID 1804 wrote to memory of 3972	1804	2023 Customer Information Export(1).doc.exe	97
PID 1804 wrote to memory of 3972	1804	2023 Customer Information Export(1).doc.exe	97
PID 1804 wrote to memory of 3972	1804	2023 Customer Information Export(1).doc.exe	97
PID 1804 wrote to memory of 3972	1804	2023 Customer Information Export(1).doc.exe	97
PID 1804 wrote to memory of 3972	1804	2023 Customer Information Export(1).doc.exe	97

C:\Users\Admin\AppData\Local\Temp\2023 Customer Information Export(1).doc.exe
"C:\Users\Admin\AppData\Local\Temp\2023 Customer Information Export(1).doc.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hETSNfSV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6E84.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1000
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3972
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3972 -s 2020
    3⤵
    - Program crash
    PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3972 -ip 3972
1⤵
PID:4128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6E84.tmp

Filesize
1KB

MD5
8572b11ab1d64b060042247c6b59e3e0

SHA1
2e45d247eeb27155a1fbec493091a05cffd09d9f

SHA256
451abb334259e8c753640225b0937b9eef14df3135aed1379c8423be6f163707

SHA512
2421d4f1c165616770188b8f6b23e7341ebc5e57c31ca81e0cc8f060684f75dfc2090bf043ba33290e68566303f26148091fe6ef3c3c63625f41d3a48c705bd9

Download Submit
memory/1804-12-0x000000007F770000-0x000000007F780000-memory.dmp

Filesize
64KB

Download
memory/1804-9-0x00000000093C0000-0x00000000093CC000-memory.dmp

Filesize
48KB

Download
memory/1804-3-0x0000000005EC0000-0x0000000006464000-memory.dmp

Filesize
5.6MB

Download
memory/1804-4-0x00000000059B0000-0x0000000005A42000-memory.dmp

Filesize
584KB

Download
memory/1804-5-0x0000000005980000-0x0000000005990000-memory.dmp

Filesize
64KB

Download
memory/1804-6-0x0000000005920000-0x000000000592A000-memory.dmp

Filesize
40KB

Download
memory/1804-7-0x0000000005AB0000-0x0000000005B06000-memory.dmp

Filesize
344KB

Download
memory/1804-13-0x00000000094F0000-0x000000000956E000-memory.dmp

Filesize
504KB

Download
memory/1804-0-0x0000000000DD0000-0x0000000000E82000-memory.dmp

Filesize
712KB

Download
memory/1804-10-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/1804-2-0x0000000005850000-0x00000000058EC000-memory.dmp

Filesize
624KB

Download
memory/1804-11-0x0000000005980000-0x0000000005990000-memory.dmp

Filesize
64KB

Download
memory/1804-8-0x000000007F770000-0x000000007F780000-memory.dmp

Filesize
64KB

Download
memory/1804-14-0x0000000006D00000-0x0000000006D42000-memory.dmp

Filesize
264KB

Download
memory/1804-1-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/1804-20-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/3972-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3972-21-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/3972-22-0x0000000005400000-0x0000000005410000-memory.dmp

Filesize
64KB

Download
memory/3972-23-0x0000000005580000-0x00000000055E6000-memory.dmp

Filesize
408KB

Download
memory/3972-24-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/3972-25-0x0000000005400000-0x0000000005410000-memory.dmp

Filesize
64KB

Download
memory/3972-28-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads