MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 624144b2f3c5ac061a7ba15175e01fdbd9c2d3038b56e5c73b9ec4b5a480e47e. 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: 4


Intelligence 4 IOCs YARA File information Comments 1

SHA256 hash: 624144b2f3c5ac061a7ba15175e01fdbd9c2d3038b56e5c73b9ec4b5a480e47e
SHA3-384 hash: ee7aa5f9b970baeabe294f2c3aa6cd56368c04becfd318fd033f88213aef4caf7af16f49b48f4e2d44d18919b9cece5f
SHA1 hash: f7fb3eef5599ff26da544b8ea2b7dc3503b3238c
MD5 hash: 92c690854d94126889ad09b5d948af3b
humanhash: floor-saturn-don-jig
File name:SKMBT Ref MT103 27042021.exe
Download: download sample
Signature GuLoader
File size:131'072 bytes
First seen:2021-04-28 08:12:28 UTC
Last seen:2021-04-28 14:47:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6aa5b81436a45ca75593788a1c1a8a0f (1 x GuLoader)
ssdeep 1536:yRs8rcQd7eOJ+LyTybGBlxJWliqigWo8FzMptzQElqqfAR/m:c0QZeOJ+ElgD8FzMLzQcqqfAR/m
Threatray 2'529 similar samples on MalwareBazaar
TLSH 9AD3A6663254AC3BC95545F8EB240DAC7B70EB3D3A1A848381F2D5073F65B86F3296E1
Reporter Anonymous
Tags:GuLoader

Intelligence


File Origin
# of uploads :
2
# of downloads :
224
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SKMBT Ref MT103 27042021.exe
Verdict:
No threats detected
Analysis date:
2021-04-28 08:07:03 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Found malware configuration
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Potential malicious icon found
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Generic Dropper
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 399058 Sample: SKMBT Ref MT103 27042021.exe Startdate: 28/04/2021 Architecture: WINDOWS Score: 100 29 www.3monthrule.com 2->29 31 3monthrule.com 2->31 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Potential malicious icon found 2->43 45 Found malware configuration 2->45 47 9 other signatures 2->47 11 SKMBT Ref MT103 27042021.exe 2->11         started        signatures3 process4 signatures5 57 Tries to detect Any.run 11->57 59 Hides threads from debuggers 11->59 14 SKMBT Ref MT103 27042021.exe 6 11->14         started        process6 dnsIp7 35 onedrive.live.com 14->35 37 jgvhdw.by.files.1drv.com 14->37 39 by-files.fe.1drv.com 14->39 61 Modifies the context of a thread in another process (thread injection) 14->61 63 Tries to detect Any.run 14->63 65 Maps a DLL or memory area into another process 14->65 67 3 other signatures 14->67 18 explorer.exe 14->18 injected signatures8 process9 dnsIp10 33 www.maternityclothez.com 18->33 49 System process connects to network (likely due to code injection or exploit) 18->49 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
624144b2f3c5ac061a7ba15175e01fdbd9c2d3038b56e5c73b9ec4b5a480e47e
MD5 hash:
92c690854d94126889ad09b5d948af3b
SHA1 hash:
f7fb3eef5599ff26da544b8ea2b7dc3503b3238c
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-28 09:02:04 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0002.014] Communication Micro-objective::Read Header::HTTP Communication
1) [C0019] Data Micro-objective::Check String