guloader | 37d13708f889db7729c8fd162898aa6667f546de9396aaa604fb97998fbaf02a

General

Target

rRequestforQuotation_0_2025_pdf.exe
Size

879KB
Sample

250203-kygdlsymcj
MD5

3d4fd2bc7b91d6724a1b46c27a2e35b7
SHA1

afebefe8ebbe569e7efef14ae1e617418fa5b0ec
SHA256

37d13708f889db7729c8fd162898aa6667f546de9396aaa604fb97998fbaf02a
SHA512

af44ff03cc27769c57d1d89e061d3df6121c4c4cf1f7ce53b8fa1804f3d03fa2f2d2104032f6d46ac761ee1faa3c12208753139e26127988aa8d91d6216b9e81
SSDEEP

24576:QPyqE0GP4TilxAECVQntGvuCvmuReqr/sblNP9ExQ:IE0A2MGwWp/sblNVE2

Score

10^/10

Malware Config

Targets

- Target
  
  rRequestforQuotation_0_2025_pdf.exe
- Size
  
  879KB
- MD5
  
  3d4fd2bc7b91d6724a1b46c27a2e35b7
- SHA1
  
  afebefe8ebbe569e7efef14ae1e617418fa5b0ec
- SHA256
  
  37d13708f889db7729c8fd162898aa6667f546de9396aaa604fb97998fbaf02a
- SHA512
  
  af44ff03cc27769c57d1d89e061d3df6121c4c4cf1f7ce53b8fa1804f3d03fa2f2d2104032f6d46ac761ee1faa3c12208753139e26127988aa8d91d6216b9e81
- SSDEEP
  
  24576:QPyqE0GP4TilxAECVQntGvuCvmuReqr/sblNP9ExQ:IE0A2MGwWp/sblNVE2
Score

10^/10

guloader defense_evasion discovery downloader evasion spyware stealer trojan collection
- Guloader family
  guloader
- Guloader,Cloudeye
  A shellcode based downloader first seen in 2020.
  downloader guloader
- Modifies Windows Defender DisableAntiSpyware settings
  evasion trojan
- Disables Task Manager via registry modification
  defense_evasion
- Loads dropped DLL
- Reads user/profile data of local email clients
  Email clients store some user data on disk where infostealers will often target it.
  spyware stealer
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Accesses Microsoft Outlook profiles
  collection
- Legitimate hosting services abused for malware hosting/C2
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2
- Target
  
  $PLUGINSDIR/System.dll
- Size
  
  11KB
- MD5
  
  a4dd044bcd94e9b3370ccf095b31f896
- SHA1
  
  17c78201323ab2095bc53184aa8267c9187d5173
- SHA256
  
  2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
- SHA512
  
  87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a
- SSDEEP
  
  192:em24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35OlESl:m8QIl975eXqlWBrz7YLOlE
Score

3^/10

discovery
behavioral3 behavioral4