MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3aacdce33e707b3c746e091c700042484e2916c9072d6065e0cb6505aed9724. 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


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3aacdce33e707b3c746e091c700042484e2916c9072d6065e0cb6505aed9724
SHA3-384 hash: b72516eddbaaba6ae11977eea3f3be849261c28f7bda46eea9eba3e6f285b962c5baa83d8c5b008907902d60f8ccc617
SHA1 hash: 0ff773f7a806d37e014f41a78c4ab3e9dbe688f6
MD5 hash: ee53df3cab5a316911d357f857cc1804
humanhash: lion-blossom-oven-pizza
File name:TNT Original Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:281'632 bytes
First seen:2022-08-13 06:17:22 UTC
Last seen:2022-08-13 06:39:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 6144:k8s2ASqCfp5B5972HK+kXB2G3/bn2ACNQ4DbO6pJD8OH/9o:kXSq297d1l3/iACNBHXD8OH/9o
TLSH T1DD54CE9D766075DFC857C972AFA42C28EB20B4AB531BC207E01751AD9E0D68BDF181B3
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:exe FormBook TNT

Intelligence

File Origin
# of uploads :
2
# of downloads :
307
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
TNT Original Invoice.exe
Verdict:
Malicious activity
Analysis date:
2022-08-13 06:37:30 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/ec1f0f67-7531-4841-98fd-c06b6058118a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/298359/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.345.7486.203.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/62f74258e456f39ac9463252/reports/b3da1c2c-aa17-4538-88cf-d9a6492b3689/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/81e9aaac-7c18-46b5-b325-fafb903fe720
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1050955
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected potential unwanted application
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 683465 Sample: TNT Original Invoice.exe Startdate: 13/08/2022 Architecture: WINDOWS Score: 100 32 www.hypertext.ltd 2->32 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 8 other signatures 2->42 9 TNT Original Invoice.exe 1 2->9         started        signatures3 process4 file5 24 C:\Users\...\TNT Original Invoice.exe.log, ASCII 9->24 dropped 12 cvtres.exe 9->12         started        15 cvtres.exe 9->15         started        process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 12->52 54 Maps a DLL or memory area into another process 12->54 56 Sample uses process hollowing technique 12->56 58 Queues an APC in another process (thread injection) 12->58 17 explorer.exe 12->17 injected process8 dnsIp9 26 www.998899.lc 128.14.22.37, 49776, 49777, 80 ZNETUS United States 17->26 28 artistamundial.com 66.225.241.38, 49783, 49784, 80 USG-CORPORATIONUS United States 17->28 30 6 other IPs or domains 17->30 34 System process connects to network (likely due to code injection or exploit) 17->34 21 systray.exe 13 17->21         started        signatures10 process11 signatures12 44 Tries to steal Mail credentials (via file / registry access) 21->44 46 Tries to harvest and steal browser information (history, passwords, etc) 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b3aacdce33e707b3c746e091c700042484e2916c9072d6065e0cb6505aed9724/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-08-12 05:30:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wovm3trt44d3hr2g4ci4oaaeescofelmsbznmbs6bs3fawxns4sa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/220813-g2ms1shad3/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Blocklisted process makes network request
Unpacked files
SH256 hash:
aa1871a6c1fe17fda81349156b1368494579a38ce8d7ddb911902acd3d133961
MD5 hash:
53e8f4ba6e3a667868eca46b0a4a8d72
SHA1 hash:
369224ef8e8aa09691d7ce2083929442b73550e8
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d98a16a2-1c69-4e39-9f8a-a375048f0da0/
Parent samples :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 hash:
a597cb5db9ae2dd56289e77e7589e88675cde1b5f7ae6e5c695e9bab629ebabd
MD5 hash:
e2a3932448ec9fe4ab3634244013e8ee
SHA1 hash:
84c324dcb93a21fab2b5c61b26f344367c671fe8
Link:
https://www.unpac.me/results/d98a16a2-1c69-4e39-9f8a-a375048f0da0/
SH256 hash:
bb54838dac433ecfd5b19e23e536647167114b3a74fd75fac508a34ac3ec2008
MD5 hash:
405f7afe5749939f921fdf8d24cd7f65
SHA1 hash:
7ab50edd955f57a14f2274831c70118e8b393746
Link:
https://www.unpac.me/results/d98a16a2-1c69-4e39-9f8a-a375048f0da0/
SH256 hash:
c035674bcf6499964dee7fdeb4d8867dd08813502ee55c75acedb3a47047f8a6
MD5 hash:
a063efe5379b9b85ccc8c256deecc87a
SHA1 hash:
50a79dc23a2f4832d5227f6881ab89f16c86f818
Link:
https://www.unpac.me/results/d98a16a2-1c69-4e39-9f8a-a375048f0da0/
SH256 hash:
b3aacdce33e707b3c746e091c700042484e2916c9072d6065e0cb6505aed9724
MD5 hash:
ee53df3cab5a316911d357f857cc1804
SHA1 hash:
0ff773f7a806d37e014f41a78c4ab3e9dbe688f6
Link:
https://www.unpac.me/results/d98a16a2-1c69-4e39-9f8a-a375048f0da0/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b3aacdce33e7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b3aacdce33e707b3c746e091c700042484e2916c9072d6065e0cb6505aed9724

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:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe b3aacdce33e707b3c746e091c700042484e2916c9072d6065e0cb6505aed9724

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/298359/

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