MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b55552391ee123f26e577b412c0df78bd0a59644ec510d1e7e708feff12a2abb. 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
NanoCore
Vendor detections: 10
| SHA256 hash: | b55552391ee123f26e577b412c0df78bd0a59644ec510d1e7e708feff12a2abb |
|---|---|
| SHA3-384 hash: | 9fb26dbc149820522a1840fd11f8e393d447feb3665632e696d9006b6a0c422c18dfafae760bdb25e389f2384312e447 |
| SHA1 hash: | c1d1212b6e7cae77ae2d617f461a7d6003cb6c6c |
| MD5 hash: | fb6c841478354f42dd2baa5e0b617dff |
| humanhash: | orange-hot-arkansas-ceiling |
| File name: | fb6c841478354f42dd2baa5e0b617dff.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 212'890 bytes |
| First seen: | 2021-05-03 08:50:40 UTC |
| Last seen: | 2021-05-03 11:06:14 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | ea4e67a31ace1a72683a99b80cf37830 (70 x Formbook, 64 x GuLoader, 54 x Loki) |
| ssdeep | 6144:lPXIFXaZDudHecTrSu2gYdn7toelzqBwXXM8sq:aF8DgBrcgYlKe988sq |
| Threatray | 4'955 similar samples on MalwareBazaar |
| TLSH | 332412A4B1C0C5FBE5690B311DB91F71DB9F9A088196168B7F58FE8E7421B813A2D242 |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
Intelligence
File Origin
# of uploads :
3
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a file
Sending a UDP request
Unauthorized injection to a recently created process
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Machine Learning detection for sample
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
xloader
Threat name:
Win32.Spyware.Noon
Status:
Malicious
First seen:
2021-05-03 08:51:14 UTC
AV detection:
18 of 47 (38.30%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 4'945 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.montcoimmigrationlawyer.com/uoe8/
Unpacked files
SH256 hash:
15e60d9e5fa792cd5cc27efc82d3f678cb4b75e28db4ae0161674f48f91977ab
MD5 hash:
40ad901ded07128f45c05b24c6aee1e0
SHA1 hash:
cdf241938b7e2574ad66ced23de599dc7e523bc8
SH256 hash:
b55552391ee123f26e577b412c0df78bd0a59644ec510d1e7e708feff12a2abb
MD5 hash:
fb6c841478354f42dd2baa5e0b617dff
SHA1 hash:
c1d1212b6e7cae77ae2d617f461a7d6003cb6c6c
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | Formbook |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
| Rule name: | win_formbook_g0 |
|---|---|
| Author: | Slavo Greminger, SWITCH-CERT |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
Comments
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0032.001] Data Micro-objective::CRC32::Checksum
1) [C0026.002] Data Micro-objective::XOR::Encode Data
4) [C0046] File System Micro-objective::Create Directory
5) [C0048] File System Micro-objective::Delete Directory
6) [C0047] File System Micro-objective::Delete File
7) [C0049] File System Micro-objective::Get File Attributes
8) [C0051] File System Micro-objective::Read File
9) [C0050] File System Micro-objective::Set File Attributes
10) [C0052] File System Micro-objective::Writes File
11) [E1510] Impact::Clipboard Modification
12) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
13) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
14) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
15) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
16) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
17) [C0017] Process Micro-objective::Create Process
18) [C0038] Process Micro-objective::Create Thread