MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3bef507a02758532f025b9e26a73e2cc2350e38ad47c21a73c1329a8648efed9. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3bef507a02758532f025b9e26a73e2cc2350e38ad47c21a73c1329a8648efed9
SHA3-384 hash: c9f27e5160e4a230f1d984a01b376f21f62c5301052c98d89170ed0059592b14874ba4523695a92817bffdadb04b6156
SHA1 hash: 160a20dcabb6e7c368a2db4a3a3fb3fb9ed9b9c1
MD5 hash: f431f3d5405ea22d73a8ff7415da8a7b
humanhash: emma-river-don-india
File name:Upit za narudžbinu 02242021.PDFxx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'026'048 bytes
First seen:2021-02-24 07:06:38 UTC
Last seen:2021-02-24 09:04:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:2k8vySCiSdWunLEQiydW+PWk7iWriyfpbkukWO8Jxde886ZMupGJorY3b2koM04B:2d1pWrkQkoqwS+kEzG3yW
Threatray 3'873 similar samples on MalwareBazaar
TLSH 25253A0326A8BF57F9BE9B38E36446094BF4F45AE721C70E7ED068D98A75F408716603
Reporter abuse_ch
Tags:BIH exe FormBook geo


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: smarthost1.orion.rs
Sending IP: 77.105.0.45
From: Violeta Radulović <violeta_r@gbcindonesia.org>
Subject: Upit za narudžbinu | 02242021
Attachment: Upit za narudbinu 02242021.PDFxx.zip (contains "Upit za narudžbinu 02242021.PDFxx.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
121
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Upit za narudžbinu 02242021.PDFxx.exe
Verdict:
Malicious activity
Analysis date:
2021-02-24 07:29:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/888d27d0-c245-4b9b-9a09-f684e1303a52

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/118877/
Detection(s):
SecuriteInfo.com.ArtemisF431F3D5405E.2476.7400.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a process from a recently created file
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:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/616226
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 357118 Sample: Upit za narud#U00c5#U00bebi... Startdate: 24/02/2021 Architecture: WINDOWS Score: 100 33 www.bigmikecon.com 2->33 35 prod-sav-park-lb01-1919960993.us-east-2.elb.amazonaws.com 2->35 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Detected unpacking (changes PE section rights) 2->47 49 9 other signatures 2->49 11 Upit za narud#U00c5#U00bebinu  02242021.PDFxx.exe 3 2->11         started        signatures3 process4 file5 31 Upit za narud#U00c...42021.PDFxx.exe.log, ASCII 11->31 dropped 59 Injects a PE file into a foreign processes 11->59 15 Upit za narud#U00c5#U00bebinu  02242021.PDFxx.exe 11->15         started        18 Upit za narud#U00c5#U00bebinu  02242021.PDFxx.exe 11->18         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 20 explorer.exe 15->20 injected process9 dnsIp10 37 theliveshoppingexpo.com 34.102.136.180, 49731, 80 GOOGLEUS United States 20->37 39 www.yusuph.com 52.58.78.16, 49752, 80 AMAZON-02US United States 20->39 41 2 other IPs or domains 20->41 51 System process connects to network (likely due to code injection or exploit) 20->51 24 explorer.exe 20->24         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 24->53 55 Maps a DLL or memory area into another process 24->55 57 Tries to detect virtualization through RDTSC time measurements 24->57 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3bef507a02758532f025b9e26a73e2cc2350e38ad47c21a73c1329a8648efed9/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-02-24 07:07:16 UTC
AV detection:
8 of 47 (17.02%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hpxva6qcowctf4bfxhrgu47czqrvby4k2r6cdjz4cmu2qzeo73mq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
09715a97873a089c9dc80219175d50508628f4f794639c2e725bad85d68804c2
Formbook
125b3f2e9eef8a9a9ef6c677fd9a30af2f153284c727aa914329e77bfe2ac49d
Formbook
27084ca2efd9f211569b913d31d8caee75cb773e73367c3f6cd40a78889a1934
Formbook
48afec636886aebdf7f0be7d5b9c034f2568b890215a15f13554933d94322045
Formbook
65dbaf77c991e5737ecf9041dea34a7e9eca1e38925ff69340435a3cff1314a3
Formbook
6df08a0f239a7e606968d876ee7237a1f31c73d102a9acd701aaf2b83f49f4c8
Formbook
a1db821171c7bd2950fad26899fbbc88c787f0cc7d869ee9b29f86bf09ebb92b
Formbook
bd4f44ebdc75f53514f780516dfcb2c0a70f0fcec4d964a75fde9373bd51907e
Formbook
c848b9f81ec7dcc330cc57ede3482805ccad25143eac801f7f56fc5cc0ccace5
Formbook
f3c7cac2c8159ebc8f6e4acca8f5e8722f5ee0892f76e29b9a44c7f7a475331c
Formbook
+ 3'863 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210224-crvwj84afe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.bigmikecon.com/nang/
Unpacked files
SH256 hash:
68b716109ff4e18e21bd0acacb3796f7930771d19f6a766d7d3aa0bbde4ce7e0
MD5 hash:
a3d1d373062f59282307d4b9966d702b
SHA1 hash:
60c9c330e6ff63d3e0b3b0b700ac37bde5997ced
Link:
https://www.unpac.me/results/e16c7e8f-f3a7-4671-83f3-b5293df72805/
SH256 hash:
3bef507a02758532f025b9e26a73e2cc2350e38ad47c21a73c1329a8648efed9
MD5 hash:
f431f3d5405ea22d73a8ff7415da8a7b
SHA1 hash:
160a20dcabb6e7c368a2db4a3a3fb3fb9ed9b9c1
Link:
https://www.unpac.me/results/e16c7e8f-f3a7-4671-83f3-b5293df72805/
Please note that we are no longer able to provide a coverage score for Virus Total.

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

zip be125aaf9df86d215f60e060cddbbe4b44337a2eda1c697af58bacc6109c87e9

Formbook

Executable exe 3bef507a02758532f025b9e26a73e2cc2350e38ad47c21a73c1329a8648efed9

(this sample)

  
Dropped by
MD5 3e74e627d365bdaddbf75a9392ba8f46
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 be125aaf9df86d215f60e060cddbbe4b44337a2eda1c697af58bacc6109c87e9
Cape
Cape
https://www.capesandbox.com/analysis/118877/

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