agenttesla

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General

Target

Estrogen.Executor3.0.zip
Size

11.7MB
Sample

240308-r5x39shf82
MD5

4aa58fd5464a9bb6d3f319179363794e
SHA1

046a7dcc45d3a3aa477fd64c7810697a7cac7220
SHA256

6a9b62894ee77e4131d0fbf4f43fe634e10c0c8ae616012a8e62a5047ba8b7a5
SHA512

1f6e7856064f376d927a13c60d558844973d681aeba4a854bc40fb056a4c01e1cc6b3a2d2406f5a6ac5b266a2a78b8f3cf42c52e05337ef9c5d7bd226c8dd0a5
SSDEEP

196608:YfHMUAa2KgHt6LV6WtxUlg8sbLMwzxiF391NBkI5SUuFQm7tLkdVA:YcKgEFkcbowEF3HNKIwUuFx7VkA

Score

10^/10

Malware Config

Targets

- Target
  
  Assetloader.dll
- Size
  
  9.5MB
- MD5
  
  824b1900fa0979a638e00b0aee1c32ea
- SHA1
  
  9621ce578f9561cb708f7806a5916970e1e012d1
- SHA256
  
  f3e1ed3f50fd06db77cd607b0bf4060ce1707a969fe27057ee33e1033437a761
- SHA512
  
  4c190f03dc0a0c713acc035ac199bcaba74a1aaa666aac47c582273e23cf97c59aacc49589230677003f3b6469228e70058b9690bcb527ec430f20dfb56486ca
- SSDEEP
  
  196608:L+k8xu3cwZhMWs+GGzLSHTqWdlmx0Q0Hbwq9xi/HX77r:jW8dGGi342Hkqm/Hr7
Score

8^/10

evasion persistence upx
- Sets file to hidden
  Modifies file attributes to stop it showing in Explorer etc.
  evasion
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Adds Run key to start application
  persistence
- Legitimate hosting services abused for malware hosting/C2
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2
- Target
  
  EstrogenExecutor3.0.exe
- Size
  
  1.8MB
- MD5
  
  5e75df34a8c11bae2d273edc7b9044c7
- SHA1
  
  829867bd84371a5d6cd2c628eb2adee07a44a03a
- SHA256
  
  e898f8b48bddbf5dfe8e6eb3d9287c1a5164616b7e9977a4cda96c36bc967db8
- SHA512
  
  05690fab406761fea1b2f60589198ea1cfa453a51022d3f968cfc55cddab900d1e2d4db9dcdee376974e009209876e4d1bee9717ce023e06a8b282f07f9c411b
- SSDEEP
  
  24576:n3lzFXQHA6mjAafPoMmcdzhj8vQoyxzhQdnabbTbNH5se0A0Xk+l+4lk3HgCoIK2:3lRXGV2ocFkM4abDN6ezM+H
Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan upx
- AgentTesla
  Agent Tesla is a remote access tool (RAT) written in visual basic.
  keylogger trojan stealer spyware agenttesla
- AgentTesla payload
- Sets file to hidden
  Modifies file attributes to stop it showing in Explorer etc.
  evasion
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Adds Run key to start application
  persistence
- Legitimate hosting services abused for malware hosting/C2
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral3 behavioral4
- Target
  
  Guna.UI2.dll
- Size
  
  2.1MB
- MD5
  
  c19e9e6a4bc1b668d19505a0437e7f7e
- SHA1
  
  73be712aef4baa6e9dabfc237b5c039f62a847fa
- SHA256
  
  9ac8b65e5c13292a8e564187c1e7446adc4230228b669383bd7b07035ab99a82
- SHA512
  
  b6cd0af436459f35a97db2d928120c53d3691533b01e4f0e8b382f2bd81d9a9a2c57e5e2aa6ade9d6a1746d5c4b2ef6c88d3a0cf519424b34445d0d30aab61de
- SSDEEP
  
  49152:6QNztBO2+VN7N3HtnPhx70ZO4+CPXOn5PThDH2TBeHjvjiBckYf+Yh/FJ3:6Ahck2z
Score

1^/10
behavioral5 behavioral6
- Target
  
  Newtonsoft.Json.dll
- Size
  
  695KB
- MD5
  
  195ffb7167db3219b217c4fd439eedd6
- SHA1
  
  1e76e6099570ede620b76ed47cf8d03a936d49f8
- SHA256
  
  e1e27af7b07eeedf5ce71a9255f0422816a6fc5849a483c6714e1b472044fa9d
- SHA512
  
  56eb7f070929b239642dab729537dde2c2287bdb852ad9e80b5358c74b14bc2b2dded910d0e3b6304ea27eb587e5f19db0a92e1cbae6a70fb20b4ef05057e4ac
- SSDEEP
  
  12288:GBja5bBvR8Q0TE2HB0WLmvXbsVG1Gw03RzxNHgKhwFBkjSHXP36RMGy1NqTUO:GBjk38WuBcAbwoA/BkjSHXP36RMG/
Score

1^/10
behavioral7 behavioral8