38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1

Analysis

max time kernel
93s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-10-2024 20:24

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General

Target

38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe
Size

3.9MB
MD5

5abb7e5df71fc2e43d508cde6c00cb50
SHA1

5711c8c4de192e187820cca35e8b91094f5e1f51
SHA256

38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1
SHA512

fef56f75384d7c80915d84a3df202df33a1b4aa7d5b36d398408bce6d1cc950ba2ba52c5a6d547af0d5158c8ff6a890e5e3b3e4eec43a091d5d964f54cd46484
SSDEEP

98304:q6666666666666666666666666666666x666666666666666fwwwwwwwwwwwwwwf:PXpqm+2l75t+mXNqMmDcI3CY

Score

7^/10

discovery spyware stealer

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003
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	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3320 wrote to memory of 4324	3320	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe	86
PID 3320 wrote to memory of 4324	3320	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe	86
PID 3320 wrote to memory of 4324	3320	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe	86
PID 4324 wrote to memory of 1668	4324	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe	88
PID 4324 wrote to memory of 1668	4324	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe	88
PID 4324 wrote to memory of 1668	4324	38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe	88

C:\Users\Admin\AppData\Local\Temp\38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe
"C:\Users\Admin\AppData\Local\Temp\38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3320
- C:\Users\Admin\AppData\Local\Temp\38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe
  "C:\Users\Admin\AppData\Local\Temp\38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe" --verbose-logging --run-as-admin --target-path="C:\Users\Admin\AppData\Local\Yandex\YandexBrowser\Application" --child-setup-process --restart-as-admin-time=478164896
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4324
- - C:\Users\Admin\AppData\Local\Temp\38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe
    C:\Users\Admin\AppData\Local\Temp\38f14c76ddd768139f9f3b997642faa07e93d9da00d74a24f9c028348380f4f1N.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Yandex\YandexBrowser\User Data\Crashpad" --url=https://crash-reports.browser.yandex.net/submit --annotation=machine_id=488dca4c15f9a1d330ad312b391a804e --annotation=main_process_pid=4324 --annotation=plat=Win32 --annotation=prod=Yandex --annotation=session_logout=False --annotation=ver=24.7.4.1317 --initial-client-data=0x2b0,0x2b4,0x2b8,0x28c,0x2bc,0xf6ad40,0xf6ad4c,0xf6ad58
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\yandex_browser_installer.log

Filesize
1KB

MD5
f4ef5d0f33e9032873d66d3c42be7b9c

SHA1
341f92054eb703003d89577b0e64d09283f73690

SHA256
585d4d23d760c60b4d98bc2edfd54369818868bea1844ffd98900ca8080fc5d4

SHA512
c78c3262b405a2399d06277130e2e69487e374e93097088a4a853ffddbf5ab10ee48b4ddd7e83a6f998e9fc048233ebec4eeabbf983e5395b4084e0891f5b1c2

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