guloader | 359ab600c1c1cb25744c5fd24b563ed2fbcd4918061e6409929db2c8e16a070c

General

Target

SecuriteInfo.com.Trojan.Win32.Makoob.9650.exe
Size

724KB
Sample

250327-evxcrsxtcw
MD5

a479acd2da79c2dfeabc05b5d6194fba
SHA1

18e8097c57cf691e5c2719ade7d2bca4573d9d23
SHA256

359ab600c1c1cb25744c5fd24b563ed2fbcd4918061e6409929db2c8e16a070c
SHA512

0a2d4564e0cd54394332bba59a9fbeb24afff121c420d51e5613bd3af333418ed4ef0b2b7bfcddd992857b8ec4cad773142028cbb48eaeeb8c0e433082070023
SSDEEP

12288:LR3BUI4bnFjfy75TC+WfSCgoSdYza46l0xFXc3gIwEH:V3GI4jFe7EJKT1nl0Pg73H

Score

10^/10

Malware Config

Extracted

Family

remcos

Botnet

New-Host

C2

176.65.142.81:9090

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-C2AG7V
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Targets

- Target
  
  SecuriteInfo.com.Trojan.Win32.Makoob.9650.exe
- Size
  
  724KB
- MD5
  
  a479acd2da79c2dfeabc05b5d6194fba
- SHA1
  
  18e8097c57cf691e5c2719ade7d2bca4573d9d23
- SHA256
  
  359ab600c1c1cb25744c5fd24b563ed2fbcd4918061e6409929db2c8e16a070c
- SHA512
  
  0a2d4564e0cd54394332bba59a9fbeb24afff121c420d51e5613bd3af333418ed4ef0b2b7bfcddd992857b8ec4cad773142028cbb48eaeeb8c0e433082070023
- SSDEEP
  
  12288:LR3BUI4bnFjfy75TC+WfSCgoSdYza46l0xFXc3gIwEH:V3GI4jFe7EJKT1nl0Pg73H
Score

10^/10

guloader remcos new-host collection discovery downloader rat
- Guloader family
  guloader
- Guloader,Cloudeye
  A shellcode based downloader first seen in 2020.
  downloader guloader
- Remcos
  Remcos is a closed-source remote control and surveillance software.
  rat remcos
- Remcos family
  remcos
- Detected Nirsoft tools
  Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView
  Password recovery tool for various email clients
- NirSoft WebBrowserPassView
  Password recovery tool for various web browsers
- Loads dropped DLL
- Accesses Microsoft Outlook accounts
  collection
- Legitimate hosting services abused for malware hosting/C2
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
behavioral1 behavioral2
- Target
  
  $PLUGINSDIR/System.dll
- Size
  
  11KB
- MD5
  
  a436db0c473a087eb61ff5c53c34ba27
- SHA1
  
  65ea67e424e75f5065132b539c8b2eda88aa0506
- SHA256
  
  75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49
- SHA512
  
  908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d
- SSDEEP
  
  192:aVL7iZJX76BisO7+UZEw+Rl59pV8ghsVJ39dx8T:d7NsOpZsfLMJ39e
Score

3^/10

discovery
behavioral3 behavioral4

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Tasks

Sharing

General

Malware Config

Extracted

Targets

Guloader family

Guloader,Cloudeye

Remcos

Remcos family

Detected Nirsoft tools

NirSoft MailPassView

NirSoft WebBrowserPassView

Loads dropped DLL

Accesses Microsoft Outlook accounts

Legitimate hosting services abused for malware hosting/C2

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks

static1

behavioral1

behavioral2

behavioral3

behavioral4

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