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

6^/10

persistence

Malware Config

Signatures

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-1-5-21-3513876443-2771975297-1923446376-1000\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
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1864 set thread context of 2696	1864	2023 Customer Information Export(1).doc.exe	31

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

System Information Discovery
T1082

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
2716	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2696	RegSvcs.exe
2696	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2696	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2696	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 2716	1864	2023 Customer Information Export(1).doc.exe	28
PID 1864 wrote to memory of 2716	1864	2023 Customer Information Export(1).doc.exe	28
PID 1864 wrote to memory of 2716	1864	2023 Customer Information Export(1).doc.exe	28
PID 1864 wrote to memory of 2716	1864	2023 Customer Information Export(1).doc.exe	28
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31
PID 1864 wrote to memory of 2696	1864	2023 Customer Information Export(1).doc.exe	31

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⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hETSNfSV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC4C5.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2716
- 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
  - Suspicious use of SetWindowsHookEx
  PID:2696

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC4C5.tmp

Filesize
1KB

MD5
7a4b5ddbc2fde0420c865b316e276959

SHA1
29a0f9f4ad1dc3291c63c1a022e9a0e290fe9cb3

SHA256
358f2b79797d56b37f28df9532b31a6d822365ccdd9c619d98865d72b631af6c

SHA512
86f4cf6e53b6e854ee2f4d6a668bb475a37f6fc22295fa30c2356cf0cd635f67b0d4921d4f1efbf216991b6dd7f8f8cd27eaf7c495024c9c692d420dc2f2a1fc

Download Submit
memory/1864-1-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1864-0-0x0000000000230000-0x00000000002E2000-memory.dmp

Filesize
712KB

Download
memory/1864-2-0x0000000004D80000-0x0000000004DC0000-memory.dmp

Filesize
256KB

Download
memory/1864-3-0x000000007EF40000-0x000000007EF50000-memory.dmp

Filesize
64KB

Download
memory/1864-4-0x00000000003D0000-0x00000000003DC000-memory.dmp

Filesize
48KB

Download
memory/1864-5-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1864-6-0x0000000004D80000-0x0000000004DC0000-memory.dmp

Filesize
256KB

Download
memory/1864-7-0x000000007EF40000-0x000000007EF50000-memory.dmp

Filesize
64KB

Download
memory/1864-8-0x0000000005260000-0x00000000052DE000-memory.dmp

Filesize
504KB

Download
memory/1864-9-0x0000000002060000-0x00000000020A2000-memory.dmp

Filesize
264KB

Download
memory/1864-24-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-25-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-26-0x0000000004980000-0x00000000049C0000-memory.dmp

Filesize
256KB

Download
memory/2696-29-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-30-0x0000000004980000-0x00000000049C0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads