cryptbot | 8b6a0a8d8594fb4f465a8220533a8cbf25fb725220dfc35056c7787b27d89643

Analysis

max time kernel
143s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 10:43

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General

Target

Set-up-1.exe
Size

12.2MB
MD5

b7f95a6fba7ee898425a69ffd2b6c204
SHA1

d995e2ed97947778c489f6384ba3af0f4343c0bc
SHA256

8b6a0a8d8594fb4f465a8220533a8cbf25fb725220dfc35056c7787b27d89643
SHA512

3b9d35e20161767dabea7bda5ed7db3f63ce738e0934965695dedf1f7487fc092c0e2fe3cf35b9656f521c2ab9e30596cda49d38c7ace360ff2b2b0e52930b59
SSDEEP

196608:1MRd/45eJp2M0lVasW4PEaYjxR3eYr4+hn:tf7CxwAn

Score

10^/10

cryptbot credential_access discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

Signatures

CryptBot
CryptBot is a C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot
Cryptbot family
cryptbot

Detects CryptBot payload 5 IoCs

CryptBot is a C++ stealer distributed widely in bundle with other software.

spyware stealer

resource	yara_rule
behavioral1/memory/2404-0-0x0000000000A30000-0x000000000166D000-memory.dmp	family_cryptbot_v3
behavioral1/memory/2404-3-0x0000000000A30000-0x000000000166D000-memory.dmp	family_cryptbot_v3
behavioral1/memory/2404-57-0x0000000000A30000-0x000000000166D000-memory.dmp	family_cryptbot_v3
behavioral1/memory/2404-60-0x0000000000A30000-0x000000000166D000-memory.dmp	family_cryptbot_v3
behavioral1/memory/2404-73-0x0000000000A30000-0x000000000166D000-memory.dmp	family_cryptbot_v3

Uses browser remote debugging 2 TTPs 4 IoCs

Can be used control the browser and steal sensitive information such as credentials and session cookies.

credential_access stealer

Steal Web Session Cookie

T1539

Modify Authentication Process

T1556

pid	Process
2188	chrome.exe
2940	chrome.exe
2924	chrome.exe
2968	chrome.exe

Executes dropped EXE 1 IoCs

pid	Process
1580	service123.exe

Loads dropped DLL 3 IoCs

pid	Process
2404	Set-up-1.exe
2404	Set-up-1.exe
1580	service123.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
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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 2 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	Set-up-1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Set-up-1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Set-up-1.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2244	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2188	chrome.exe
2188	chrome.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2188	chrome.exe
Token: SeShutdownPrivilege	2188	chrome.exe
Token: SeShutdownPrivilege	2188	chrome.exe
Token: SeShutdownPrivilege	2188	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe
2188	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2188	2404	Set-up-1.exe	31
PID 2404 wrote to memory of 2188	2404	Set-up-1.exe	31
PID 2404 wrote to memory of 2188	2404	Set-up-1.exe	31
PID 2404 wrote to memory of 2188	2404	Set-up-1.exe	31
PID 2188 wrote to memory of 2736	2188	chrome.exe	32
PID 2188 wrote to memory of 2736	2188	chrome.exe	32
PID 2188 wrote to memory of 2736	2188	chrome.exe	32
PID 2188 wrote to memory of 2608	2188	chrome.exe	33
PID 2188 wrote to memory of 2608	2188	chrome.exe	33
PID 2188 wrote to memory of 2608	2188	chrome.exe	33
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1664	2188	chrome.exe	35
PID 2188 wrote to memory of 1944	2188	chrome.exe	36
PID 2188 wrote to memory of 1944	2188	chrome.exe	36
PID 2188 wrote to memory of 1944	2188	chrome.exe	36
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37
PID 2188 wrote to memory of 1228	2188	chrome.exe	37

C:\Users\Admin\AppData\Local\Temp\Set-up-1.exe
"C:\Users\Admin\AppData\Local\Temp\Set-up-1.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9222 --profile-directory="Default"
  2⤵
  - Uses browser remote debugging
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2188
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef6b69758,0x7fef6b69768,0x7fef6b69778
    3⤵
    PID:2736
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:2608
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1088 --field-trial-handle=1480,i,7762487135373680370,2181099211993100302,131072 /prefetch:2
    3⤵
    PID:1664
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1396 --field-trial-handle=1480,i,7762487135373680370,2181099211993100302,131072 /prefetch:8
    3⤵
    PID:1944
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1620 --field-trial-handle=1480,i,7762487135373680370,2181099211993100302,131072 /prefetch:8
    3⤵
    PID:1228
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2284 --field-trial-handle=1480,i,7762487135373680370,2181099211993100302,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:2940
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2304 --field-trial-handle=1480,i,7762487135373680370,2181099211993100302,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:2924
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1592 --field-trial-handle=1480,i,7762487135373680370,2181099211993100302,131072 /prefetch:2
    3⤵
    PID:2144
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --remote-debugging-port=9222 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1240 --field-trial-handle=1480,i,7762487135373680370,2181099211993100302,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:2968
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1580
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2244

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Modify Authentication Process

T1556

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Authentication Process

T1556

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Modify Authentication Process

T1556

Steal Web Session Cookie

T1539

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

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\Google\Chrome\User Data\Default\GPUCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit
memory/1580-75-0x0000000001370000-0x0000000001382000-memory.dmp

Filesize
72KB

Download
memory/1580-76-0x00000000748D0000-0x0000000074A04000-memory.dmp

Filesize
1.2MB

Download
memory/2404-0-0x0000000000A30000-0x000000000166D000-memory.dmp

Filesize
12.2MB

Download
memory/2404-3-0x0000000000A30000-0x000000000166D000-memory.dmp

Filesize
12.2MB

Download
memory/2404-57-0x0000000000A30000-0x000000000166D000-memory.dmp

Filesize
12.2MB

Download
memory/2404-60-0x0000000000A30000-0x000000000166D000-memory.dmp

Filesize
12.2MB

Download
memory/2404-73-0x0000000000A30000-0x000000000166D000-memory.dmp

Filesize
12.2MB

Download