8df9e7e9a0a6fdd7ab096d0d36f19be68982b346017317f0177488ca0534b683

General

Target

Purchase order.exe
Size

243KB
MD5

2f8ab32cd008d8f7b8c59b4257acc417
SHA1

2b0673eff53c58e036ca0fa270322fd5a9421b34
SHA256

e9ae7232b9f8f855f4a1b5ab446c3b76a0d79493ae22e690b7e449fd9281f6df
SHA512

969fb9e4074d5107863342a2d67181934b748889d9410f9741b937b514ed30a32c7b4c7b811fd32c57630fa94641ca1e86c0615a82b5af6d7d958ee368395654
SSDEEP

6144:LnPdudwD8uaRyfusWm/VAfoxJ8N3mPxielGxpM:LnPdAuaEfia2uU3WxieoxpM

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4012	giyoa.exe
4916	giyoa.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4012 set thread context of 4916	4012	giyoa.exe	91

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4916	giyoa.exe
4916	giyoa.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4012	giyoa.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4916	giyoa.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4916	giyoa.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 4012	2056	Purchase order.exe	88
PID 2056 wrote to memory of 4012	2056	Purchase order.exe	88
PID 2056 wrote to memory of 4012	2056	Purchase order.exe	88
PID 4012 wrote to memory of 4916	4012	giyoa.exe	91
PID 4012 wrote to memory of 4916	4012	giyoa.exe	91
PID 4012 wrote to memory of 4916	4012	giyoa.exe	91
PID 4012 wrote to memory of 4916	4012	giyoa.exe	91

C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2056
- C:\Users\Admin\AppData\Local\Temp\giyoa.exe
  "C:\Users\Admin\AppData\Local\Temp\giyoa.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Users\Admin\AppData\Local\Temp\giyoa.exe
    "C:\Users\Admin\AppData\Local\Temp\giyoa.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\giyoa.exe

Filesize
214KB

MD5
981216d841c5bccd74b8355d64ff4e7e

SHA1
7dcebf5cce67e1d802cfcb750731abf641cc1bb2

SHA256
dc2ae0646daeaa4f714a483998400eae7f0ae38a059ffe2514639e5870535d3e

SHA512
65a10ad525410ba71f0765cee042994036b7d322838a8b0f97046a172df864abb89138320c14f2f8c02ae3b9a4dab149a9076c92e1ebc6fb79fe13cc92481a45

Download Submit
C:\Users\Admin\AppData\Local\Temp\giyoa.exe

Filesize
214KB

MD5
981216d841c5bccd74b8355d64ff4e7e

SHA1
7dcebf5cce67e1d802cfcb750731abf641cc1bb2

SHA256
dc2ae0646daeaa4f714a483998400eae7f0ae38a059ffe2514639e5870535d3e

SHA512
65a10ad525410ba71f0765cee042994036b7d322838a8b0f97046a172df864abb89138320c14f2f8c02ae3b9a4dab149a9076c92e1ebc6fb79fe13cc92481a45

Download Submit
C:\Users\Admin\AppData\Local\Temp\giyoa.exe

Filesize
214KB

MD5
981216d841c5bccd74b8355d64ff4e7e

SHA1
7dcebf5cce67e1d802cfcb750731abf641cc1bb2

SHA256
dc2ae0646daeaa4f714a483998400eae7f0ae38a059ffe2514639e5870535d3e

SHA512
65a10ad525410ba71f0765cee042994036b7d322838a8b0f97046a172df864abb89138320c14f2f8c02ae3b9a4dab149a9076c92e1ebc6fb79fe13cc92481a45

Download Submit
C:\Users\Admin\AppData\Local\Temp\tvcxswmb.nvq

Filesize
127KB

MD5
1942ec5d9ba70fb43a6e6dfc59cd45f4

SHA1
bd4c9ba82989f3434f62f6b83f677b4fc3e56334

SHA256
55bb1abf761d908198ac353c7908ae7377fd9320596c50470928b472b580fd30

SHA512
5a38b6ea186ee27503c97aece76f05f8e023e784c46fde23ffb7adf69d706251cd63e8eda5cbbddfc8f5a02b8a11a675a4f5a8693efc9ba06d4e2ff5699b0ff7

Download Submit
memory/4012-5-0x0000000001450000-0x0000000001452000-memory.dmp

Filesize
8KB

Download
memory/4916-18-0x0000000004FF0000-0x0000000005056000-memory.dmp

Filesize
408KB

Download
memory/4916-20-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/4916-10-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4916-11-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4916-13-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/4916-14-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/4916-15-0x0000000002780000-0x000000000278E000-memory.dmp

Filesize
56KB

Download
memory/4916-16-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/4916-17-0x0000000005530000-0x0000000005AD4000-memory.dmp

Filesize
5.6MB

Download
memory/4916-7-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4916-19-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/4916-9-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4916-21-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/4916-22-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/4916-23-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/4916-24-0x00000000061C0000-0x0000000006252000-memory.dmp

Filesize
584KB

Download
memory/4916-25-0x00000000065B0000-0x00000000065BA000-memory.dmp

Filesize
40KB

Download
memory/4916-26-0x00000000068D0000-0x0000000006A92000-memory.dmp

Filesize
1.8MB

Download
memory/4916-27-0x0000000006FD0000-0x00000000074FC000-memory.dmp

Filesize
5.2MB

Download
memory/4916-28-0x0000000006800000-0x0000000006826000-memory.dmp

Filesize
152KB

Download
memory/4916-29-0x0000000006830000-0x0000000006880000-memory.dmp

Filesize
320KB

Download
memory/4916-30-0x00000000067B0000-0x00000000067C4000-memory.dmp

Filesize
80KB

Download
memory/4916-31-0x00000000067C0000-0x00000000067CC000-memory.dmp

Filesize
48KB

Download

Analysis

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