guloader | d279cafd050cd071af764df4cc856e9e188ce0c920d13429a3b33129c7e4cee2

General

Target

Sigmanly_d279cafd050cd071af764df4cc856e9e188ce0c920d13429a3b33129c7e4cee2
Size

422KB
Sample

250113-rkzflaxker
MD5

ad29d6168abbec988896c57d4d25e2ed
SHA1

469b06a2d18997abeb8829bd6e495cdfee811270
SHA256

d279cafd050cd071af764df4cc856e9e188ce0c920d13429a3b33129c7e4cee2
SHA512

5b5c702fc4d24dc03e46f5238969d7f6010d1298a928cc6dcdbfedf69cc8440e53480ddbac57deef9d100499f97d18b55f895770bb916a5f29a6770594041468
SSDEEP

12288:I5AeDyYI91QcLmn1XNu7Jj1JK8s5FEeKJ:ZebIEXNu7Jj1Jices

Score

10^/10

Malware Config

Targets

- Target
  
  Sigmanly_d279cafd050cd071af764df4cc856e9e188ce0c920d13429a3b33129c7e4cee2
- Size
  
  422KB
- MD5
  
  ad29d6168abbec988896c57d4d25e2ed
- SHA1
  
  469b06a2d18997abeb8829bd6e495cdfee811270
- SHA256
  
  d279cafd050cd071af764df4cc856e9e188ce0c920d13429a3b33129c7e4cee2
- SHA512
  
  5b5c702fc4d24dc03e46f5238969d7f6010d1298a928cc6dcdbfedf69cc8440e53480ddbac57deef9d100499f97d18b55f895770bb916a5f29a6770594041468
- SSDEEP
  
  12288:I5AeDyYI91QcLmn1XNu7Jj1JK8s5FEeKJ:ZebIEXNu7Jj1Jices
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