guloader | 0ff51f1bfcef0cabf76af8a2c9bb5c01aef4940a97c9b5cebe83cddf62d5be77

General

Target

0ff51f1bfcef0cabf76af8a2c9bb5c01aef4940a97c9b5cebe83cddf62d5be77.exe
Size

450KB
Sample

241220-cl89vswpcz
MD5

d0074edab5cee4b432bf2e9f075e6301
SHA1

71a829b476596ad54566c823499b1bfdfa86ae3e
SHA256

0ff51f1bfcef0cabf76af8a2c9bb5c01aef4940a97c9b5cebe83cddf62d5be77
SHA512

cbb46e94676d3af4c058b37b906617c676f715a6915d03670b4f9b6f1c1b4618797f97a685c0baabd878ceec1db73145da657f8c5fba349ba7798680425f9128
SSDEEP

12288:I5A5oTwRbhaR8N6U2ZD3oHFHYvNrpu7Jj1JK8s5FEeKv:Z5uwpCDmqrpu7Jj1JiceG

Score

10^/10

Malware Config

Targets

- Target
  
  0ff51f1bfcef0cabf76af8a2c9bb5c01aef4940a97c9b5cebe83cddf62d5be77.exe
- Size
  
  450KB
- MD5
  
  d0074edab5cee4b432bf2e9f075e6301
- SHA1
  
  71a829b476596ad54566c823499b1bfdfa86ae3e
- SHA256
  
  0ff51f1bfcef0cabf76af8a2c9bb5c01aef4940a97c9b5cebe83cddf62d5be77
- SHA512
  
  cbb46e94676d3af4c058b37b906617c676f715a6915d03670b4f9b6f1c1b4618797f97a685c0baabd878ceec1db73145da657f8c5fba349ba7798680425f9128
- SSDEEP
  
  12288:I5A5oTwRbhaR8N6U2ZD3oHFHYvNrpu7Jj1JK8s5FEeKv:Z5uwpCDmqrpu7Jj1JiceG
Score

10^/10

guloader discovery downloader evasion spyware stealer collection
- Guloader family
  guloader
- Guloader,Cloudeye
  A shellcode based downloader first seen in 2020.
  downloader guloader
- Disables Task Manager via registry modification
  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.
- Drops file in System32 directory
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
behavioral1 behavioral2
- Target
  
  $PLUGINSDIR/System.dll
- Size
  
  11KB
- MD5
  
  ee260c45e97b62a5e42f17460d406068
- SHA1
  
  df35f6300a03c4d3d3bd69752574426296b78695
- SHA256
  
  e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27
- SHA512
  
  a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3
- SSDEEP
  
  192:eF24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35Ol9Sl:h8QIl975eXqlWBrz7YLOl9
Score

3^/10

discovery
behavioral3 behavioral4