MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 748ce7579bc62b829e86a78f82fd141bbb93ca139c6099e9112a8231deb15e42. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 748ce7579bc62b829e86a78f82fd141bbb93ca139c6099e9112a8231deb15e42
SHA3-384 hash: 17c292d24141e463f5d6d4a9b66672f00b20697453d0fb72e63d92128f50ed383b5dd4ba2529c197627ab76d2c858343
SHA1 hash: 0406f6616dea9aec6602482c0723a4f674bd9122
MD5 hash: 86264902dc44c6d23d17668ea967f60f
humanhash: romeo-equal-louisiana-xray
File name:Purchase Order.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'935'872 bytes
First seen:2021-06-08 05:42:31 UTC
Last seen:2021-06-08 20:37:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 49152:kUYtXiZ/2dQ9sSxBr+pD/I+9R8J3hkt7wQGPMQCB:kUYtXS/sQPrq0YR8JxZrLC
Threatray 277 similar samples on MalwareBazaar
TLSH F995232E779C5A37D2FD5AB1882020655BF6AC1F7560E6663EB8FD8C38B3705424CA13
Reporter cocaman
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
4
# of downloads :
117
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-08 05:45:42 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/311bffab-5c1c-4daf-85b6-2b6fe6f55059

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/165125/
Detection(s):
SecuriteInfo.com.PWS-FCZF86264902DC44.27493.28544.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
SUSPICIOUS
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:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/798478
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Detected Nanocore Rat
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 430874 Sample: Purchase Order.exe Startdate: 08/06/2021 Architecture: WINDOWS Score: 92 27 Multi AV Scanner detection for submitted file 2->27 29 Detected Nanocore Rat 2->29 31 Yara detected AntiVM3 2->31 33 6 other signatures 2->33 7 Purchase Order.exe 3 2->7         started        process3 file4 25 C:\Users\user\...\Purchase Order.exe.log, ASCII 7->25 dropped 35 Injects a PE file into a foreign processes 7->35 11 Purchase Order.exe 2 7->11         started        13 Purchase Order.exe 7->13         started        15 Purchase Order.exe 7->15         started        17 Purchase Order.exe 7->17         started        signatures5 process6 process7 19 WerFault.exe 23 9 11->19         started        21 WerFault.exe 2 9 11->21         started        23 WerFault.exe 11->23         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/748ce7579bc62b829e86a78f82fd141bbb93ca139c6099e9112a8231deb15e42/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-06-08 02:39:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
64
AV detection:
3 of 47 (6.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=osgoov43yyvyfhugu6hyf7iudo5zhsqttrqjt2irfkbddxvrlzba._file
Verdict:
unknown
Similar samples:
0ebfb9888d15c1377eb933a088f7aa3dd228523ffee36d7f8718c49d976dab6c
NanoCore
2cd722bc4e448f38f4e79e69a48a7fc3f92c09586e50bc0f3f9f8dc5f4495fcc
NanoCore
3c47f8bdb6cb223b1b28ad2401962949c90f1780028be03d775b7d4322aef6f0
NanoCore
445d39df326616cbfd206707370348697ee1ad8ffb5ce1edc330afe9bf49266e
NanoCore
6c6c416e7f5f748b6369b4eee9212932740124e375439222cdc649fb2d63d7e5
NanoCore
76ce9f4c6d885f5bda4f6ad06369eae74d130bd1313cf8b4e689e5265af751ba
NanoCore
c5eee53cdd6b6cbbd5019764f7ad3a74de92d1629619e972b8a3a1a7d2994170
NanoCore
c786e0379beca0fae70411e47c89af47389b3469ec8d5c8d8c399f1b5d78a856
NanoCore
cf1e8f2fc2dd05514be3e8f92abf5b266dfb1547cc611dabc0cc4eea5a1b7dfe
NanoCore
d4e27b8e7e1fd965522468bdc3eaf06513dd3a3e7402d9b441ab002dfc892adc
NanoCore
+ 267 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210608-kmzemcfa3s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
34e69e90b7cb6121c3f93911f21dfb00491ea5d5bb79bfce4902d04f72c24184
MD5 hash:
b6b086a0ab13f3feb9ee8c846d230e5d
SHA1 hash:
dd8e1b816f3e7d9dcfa6eddc20a27fe0fbed478a
Link:
https://www.unpac.me/results/6eee7249-dadd-4045-b65a-3708b181a26c/
SH256 hash:
748ce7579bc62b829e86a78f82fd141bbb93ca139c6099e9112a8231deb15e42
MD5 hash:
86264902dc44c6d23d17668ea967f60f
SHA1 hash:
0406f6616dea9aec6602482c0723a4f674bd9122
Link:
https://www.unpac.me/results/6eee7249-dadd-4045-b65a-3708b181a26c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/748ce7579bc62b829e86a78f82fd141bbb93ca139c6099e9112a8231deb15e42

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

NanoCore

zip 4ba2e9dac0846744d8dd87a996f08d7c2c98fca542a9d309a2b3d0feceb5f1c1

NanoCore

Executable exe 748ce7579bc62b829e86a78f82fd141bbb93ca139c6099e9112a8231deb15e42

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 4ba2e9dac0846744d8dd87a996f08d7c2c98fca542a9d309a2b3d0feceb5f1c1
Cape
Cape
https://www.capesandbox.com/analysis/165125/

Comments