latentbot | ca7b743a5c9d25017b61f0f3d561409aa558cd9891ad07a61f6726796a3c94dd

General

Target

Client-built.exe
Size

709KB
MD5

34a8c705e2bd75f4956b2cb6fdcef493
SHA1

97024b73c67021cdda06b78bb042d1c17e6e38d4
SHA256

ca7b743a5c9d25017b61f0f3d561409aa558cd9891ad07a61f6726796a3c94dd
SHA512

6f65a700ac682b1066bd95fe62e9eee1194ca86462833e7b961a7f00b8525fca1d3f6fbf799d9bf0364446552d32913358d47ce15b9ab310b6ae463fa673acf5
SSDEEP

6144:PjqH401kDnm7k6IGc3QoI6XLO1oiQw2FgiXU6IlI2oE4vIt30iLn798be3ggf8xY:PeH3AbYIa6IlI2oEtCgKjAVdzT5P

Score

10^/10

latentbot quasar real discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

real

C2

cheezeyballs.zapto.org:4847

Mutex

18832aec-ab0a-4e7a-8480-d688d220ea63

Attributes

encryption_key
15F7B7E72381E729EFE3F3EC04B9B82B2C52ECB9
install_name
RuntimeBroker.exe
log_directory
Logs
reconnect_delay
1000
startup_key
RuntimeBroker
subdirectory
Runtime

Extracted

Family

latentbot

C2

cheezeyballs.zapto.org

Signatures

LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot
Latentbot family
latentbot
Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar family
quasar

Quasar payload 2 IoCs

resource	yara_rule
behavioral2/memory/5184-1-0x0000000000180000-0x0000000000238000-memory.dmp	family_quasar
behavioral2/files/0x000e00000002404a-6.dat	family_quasar

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-1-5-21-3920955164-3782810283-1225622749-1000\Control Panel\International\Geo\Nation	RuntimeBroker.exe

Executes dropped EXE 1 IoCs

pid	Process
5208	RuntimeBroker.exe

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

System Information Discovery
T1082

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1780	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1780	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
5312	schtasks.exe
4600	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5184	Client-built.exe
Token: SeDebugPrivilege	5208	RuntimeBroker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5208	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5184 wrote to memory of 5312	5184	Client-built.exe	88
PID 5184 wrote to memory of 5312	5184	Client-built.exe	88
PID 5184 wrote to memory of 5208	5184	Client-built.exe	90
PID 5184 wrote to memory of 5208	5184	Client-built.exe	90
PID 5208 wrote to memory of 4600	5208	RuntimeBroker.exe	91
PID 5208 wrote to memory of 4600	5208	RuntimeBroker.exe	91
PID 5208 wrote to memory of 5424	5208	RuntimeBroker.exe	94
PID 5208 wrote to memory of 5424	5208	RuntimeBroker.exe	94
PID 5208 wrote to memory of 4624	5208	RuntimeBroker.exe	96
PID 5208 wrote to memory of 4624	5208	RuntimeBroker.exe	96
PID 4624 wrote to memory of 1356	4624	cmd.exe	98
PID 4624 wrote to memory of 1356	4624	cmd.exe	98
PID 4624 wrote to memory of 1780	4624	cmd.exe	99
PID 4624 wrote to memory of 1780	4624	cmd.exe	99

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5184
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "RuntimeBroker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Runtime\RuntimeBroker.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5312
- C:\Users\Admin\AppData\Roaming\Runtime\RuntimeBroker.exe
  "C:\Users\Admin\AppData\Roaming\Runtime\RuntimeBroker.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5208
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "RuntimeBroker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Runtime\RuntimeBroker.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4600
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /delete /tn "RuntimeBroker" /f
    3⤵
    PID:5424
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Ps3WxA0h6rcn.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4624
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:1356
  - - C:\Windows\system32\PING.EXE
      ping -n 10 localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:1780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Ps3WxA0h6rcn.bat

Filesize
219B

MD5
41ed8ed80cdd58aea7b172cfc3d991c7

SHA1
a637f745b6149edc1115ece5053b98c2f74c2ea7

SHA256
6072e24c4d199509e6023d3a0abb42e9ff3f55bb4337cd66ac5c0c9a10e00c6a

SHA512
6edf3802976f1b0bc4cf7389fbaa66716256bc084bb66cb3c4bd0008c6ae3e0afe549d38ce3ee49c7798d51768c7fbca90f02e29e7799e510c76b23695713d32

Download Submit
C:\Users\Admin\AppData\Roaming\Runtime\RuntimeBroker.exe

Filesize
709KB

MD5
34a8c705e2bd75f4956b2cb6fdcef493

SHA1
97024b73c67021cdda06b78bb042d1c17e6e38d4

SHA256
ca7b743a5c9d25017b61f0f3d561409aa558cd9891ad07a61f6726796a3c94dd

SHA512
6f65a700ac682b1066bd95fe62e9eee1194ca86462833e7b961a7f00b8525fca1d3f6fbf799d9bf0364446552d32913358d47ce15b9ab310b6ae463fa673acf5

Download Submit
memory/5184-0-0x00007FFF46BB3000-0x00007FFF46BB5000-memory.dmp

Filesize
8KB

Download
memory/5184-1-0x0000000000180000-0x0000000000238000-memory.dmp

Filesize
736KB

Download
memory/5184-2-0x00007FFF46BB0000-0x00007FFF47671000-memory.dmp

Filesize
10.8MB

Download
memory/5184-9-0x00007FFF46BB0000-0x00007FFF47671000-memory.dmp

Filesize
10.8MB

Download
memory/5208-11-0x000000001D100000-0x000000001D150000-memory.dmp

Filesize
320KB

Download
memory/5208-12-0x000000001D210000-0x000000001D2C2000-memory.dmp

Filesize
712KB

Download
memory/5208-13-0x000000001D190000-0x000000001D1A2000-memory.dmp

Filesize
72KB

Download
memory/5208-14-0x000000001DA10000-0x000000001DA4C000-memory.dmp

Filesize
240KB

Download
memory/5208-15-0x00007FFF46BB0000-0x00007FFF47671000-memory.dmp

Filesize
10.8MB

Download
memory/5208-10-0x00007FFF46BB0000-0x00007FFF47671000-memory.dmp

Filesize
10.8MB

Download
memory/5208-21-0x00007FFF46BB0000-0x00007FFF47671000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads