MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 efc035ff598957f35768f2d84721bbec76633c60538eda9d5ec53092f4384237. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
GuLoader
Vendor detections: 9
| SHA256 hash: | efc035ff598957f35768f2d84721bbec76633c60538eda9d5ec53092f4384237 |
|---|---|
| SHA3-384 hash: | 461ca7ce7dcb6479177b5cdcf66a85b42057f63289861323a821a2af850f023483146e8d94c77718a443e828c771998e |
| SHA1 hash: | 9f96b5604608eeafb8105049f3036684f149dda8 |
| MD5 hash: | c039a3986e1ff6908007dfda04492296 |
| humanhash: | monkey-ceiling-stairway-magnesium |
| File name: | SecuriteInfo.com.Variant.Tedy.195971.2955.30957 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 771'280 bytes |
| First seen: | 2022-09-01 21:34:23 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e2a592076b17ef8bfb48b7e03965a3fc (385 x GuLoader, 58 x RemcosRAT, 40 x AgentTesla) |
| ssdeep | 12288:jqUyPO6sfIg5W8o0lgwYNyE7ZMjL3V9YAgcja7bYtleahPrNC4T6ouo8y2:oW6h0W8oyYIiMnLRttM4uf |
| TLSH | T178F4128336D4E252D5948B39F5E7D392DA7ABD344EB0550B7250EF1E3A30382A80F369 |
| TrID | 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 16.4% (.EXE) Win64 Executable (generic) (10523/12/4) 10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.0% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | f0a9b898c8e0969a (2 x GuLoader) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Immunosuppressive Icebound Portension |
|---|---|
| Issuer: | Immunosuppressive Icebound Portension |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-03-27T03:11:38Z |
| Valid to: | 2025-03-26T03:11:38Z |
| Serial number: | 2dc033fbfd24176f |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | f1915dafbca996563d01306f622f0a6fba5d5f7837343a5008b0ad199b87a5ba |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
461
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
efc035ff598957f35768f2d84721bbec76633c60538eda9d5ec53092f4384237.zip
Verdict:
Malicious activity
Analysis date:
2022-09-01 22:31:39 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Searching for the window
Sending a custom TCP request
Creating a file
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
evad.troj.spyw
Score:
100 / 100
Signature
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2022-09-01 21:35:10 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
5 of 39 (12.82%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
guloader
Score:
10/10
Tags:
family:agenttesla family:guloader collection downloader keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks QEMU agent file
Loads dropped DLL
AgentTesla
Guloader,Cloudeye
Malware Config
C2 Extraction:
https://api.telegram.org/bot5387517837:AAHI8L3I-OHmq0oJo6tuPuoRyKMJax0PL9I/sendDocument
Unpacked files
SH256 hash:
2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
MD5 hash:
a4dd044bcd94e9b3370ccf095b31f896
SHA1 hash:
17c78201323ab2095bc53184aa8267c9187d5173
SH256 hash:
f7f18593f39918e37ff143130a7ba54004e0385ff018d98200a7751569d5e481
MD5 hash:
e07aed58d32bb9f432045fe21ea8b5fa
SHA1 hash:
087755d95ddb41ade9ddb47ddd38bc6e3cd66364
SH256 hash:
7bb5b66e987e4029172d097822dea6adf4baf5ae5f95a0a812c680c1b9e06fac
MD5 hash:
31597ed1eeceae0197fad0628ace5349
SHA1 hash:
c949f14532575cc02c0b22e34922d84d4e84e57d
SH256 hash:
efc035ff598957f35768f2d84721bbec76633c60538eda9d5ec53092f4384237
MD5 hash:
c039a3986e1ff6908007dfda04492296
SHA1 hash:
9f96b5604608eeafb8105049f3036684f149dda8
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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