MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1fd5511e287f166cac6d6c1eceecf16b5fccecb56656c6a501def0da6f8ccd05. 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: 12
| SHA256 hash: | 1fd5511e287f166cac6d6c1eceecf16b5fccecb56656c6a501def0da6f8ccd05 |
|---|---|
| SHA3-384 hash: | b830dbe495445c9a2ddf3abbc50e45f422a70eadea8fdd9e25747977d6918a6e8ee8ba2ad13c0990c59126fcb0eee5b9 |
| SHA1 hash: | 6d751d61899ecea7d132e402cdc79feac647ff0f |
| MD5 hash: | bf40f5cf064fc22236f40b9075510c06 |
| humanhash: | oscar-asparagus-network-thirteen |
| File name: | WAYBILL.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 276'645 bytes |
| First seen: | 2023-05-03 10:44:07 UTC |
| Last seen: | 2023-05-03 11:41:24 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 93dfc16ed07ebeb5b405221f10d12c0e (30 x GuLoader, 4 x RemcosRAT, 1 x AgentTesla) |
| ssdeep | 6144:a4E6JRqVYt7R0JdWy/lVSMWXKjPheOe/sDGrACEaVT:a4EVU7R0JdxlxWXKjpePMCE8 |
| Threatray | 13 similar samples on MalwareBazaar |
| TLSH | T11044028281E985E7FDAB0430647AED1221577D6EE4F5680BA7E5394468733C3A03FA4E |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | b42549516949694d (7 x Formbook, 3 x GuLoader) |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
2
# of downloads :
253
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
WAYBILL.exe
Verdict:
Malicious activity
Analysis date:
2023-05-03 10:47:55 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:
Suspicious
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Searching for the window
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
guloader overlay packed shell32.dll
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
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:
GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
Mass process execution to delay analysis
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2023-02-24 05:05:19 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
20 of 37 (54.05%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 3 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Unpacked files
SH256 hash:
ec156cb0f64588f8c34a7d45c57b250779143cf3816081829810a017f0cf966f
MD5 hash:
b3017435b63a99f6a3037cfe0c7c8b1e
SHA1 hash:
41a582b60f099b65f95ac64e1a5cdce0356a6b6f
SH256 hash:
9352c8971d0046a5526da1889f841eab8ef695e4786b6656f06af289cf32de44
MD5 hash:
402792a47412801287bc610a15cd6076
SHA1 hash:
f2990ac9e903bec596266bf1a1c340ec90ed4ee6
SH256 hash:
c6fdb91b51616171d0c72d213be38f1674c0f4a53c34ba232c815f5e7f425217
MD5 hash:
2860c2df01814fc1ae5f96f8c3169459
SHA1 hash:
3cbfe549664fc8e9f9ec71fe35ae9f3791ace11c
SH256 hash:
1fd5511e287f166cac6d6c1eceecf16b5fccecb56656c6a501def0da6f8ccd05
MD5 hash:
bf40f5cf064fc22236f40b9075510c06
SHA1 hash:
6d751d61899ecea7d132e402cdc79feac647ff0f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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