MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dcef53803395ab07ecfa4230ae586003b507e875cd93bae17648c47b536a7622. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dcef53803395ab07ecfa4230ae586003b507e875cd93bae17648c47b536a7622
SHA3-384 hash: 01e279051fab9cd2e75a9889338cf9998394d1a1685633405269ef403293c9ae76f93afe53ea05b4949df8dc1dc0a3bd
SHA1 hash: c1f80783a4dea6938a2dae2f2bf3184990781273
MD5 hash: 5a2e45271530271caad2f24c11593abc
humanhash: vegan-washington-colorado-vermont
File name:I AM INTERESTED IN THIS PRODUCT.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'148'038 bytes
First seen:2022-12-27 08:37:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12e12319f1029ec4f8fcbed7e82df162 (430 x NirCmd, 392 x DCRat, 52 x RedLineStealer)
ssdeep 24576:yTbBv5rUVoXvMRj978H06A7ahCQzxpQNpp3JoxRMa2LSmnbrDUV:UB/VA7aQ8pQNpVJoN29rDUV
Threatray 17'039 similar samples on MalwareBazaar
TLSH T1D7351201BAC1D672D0A319721936B720A93D3D201FA9CADF7392765CED316D1E731BA2
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon a0803335351580a1 (1 x AsyncRAT, 1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
205
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
I AM INTERESTED IN THIS PRODUCT.exe
Verdict:
Malicious activity
Analysis date:
2022-12-27 08:40:40 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/a59a56a9-21c7-4e6a-a4da-07a61bed3b71

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.38920448.13962.7593.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Launching a process
Creating a process from a recently created file
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
anti-vm greyware overlay packed setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/63aaaeec0e926711fd74e634/reports/b020e105-d433-410f-bb1a-c40712a3f55b/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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/6ae325d3-4d7f-4945-8e5a-c41a8357e313
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1141432
Signature
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Starts an encoded Visual Basic Script (VBE)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 774162 Sample: I AM INTERESTED IN THIS PRO... Startdate: 27/12/2022 Architecture: WINDOWS Score: 72 26 Multi AV Scanner detection for submitted file 2->26 28 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->28 30 Starts an encoded Visual Basic Script (VBE) 2->30 9 I AM INTERESTED IN THIS PRODUCT.exe 86 2->9         started        process3 file4 24 C:\Users\user\AppData\Local\...\foxbvlbsa.exe, PE32 9->24 dropped 32 Starts an encoded Visual Basic Script (VBE) 9->32 13 wscript.exe 1 9->13         started        signatures5 process6 process7 15 foxbvlbsa.exe 1 2 13->15         started        signatures8 34 Antivirus detection for dropped file 15->34 36 Multi AV Scanner detection for dropped file 15->36 18 RegSvcs.exe 15->18         started        20 RegSvcs.exe 15->20         started        process9 process10 22 WerFault.exe 18->22         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dcef53803395ab07ecfa4230ae586003b507e875cd93bae17648c47b536a7622/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-12-27 08:38:27 UTC
File Type:
PE (Exe)
Extracted files:
108
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3txvhabtswvqp3h2iiyk4wdaao2qp2dvzwj3vylwjdchwu3koyra._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0781ecbc9b6c76726a47ac572182d795fc2bfa25a15c906b92a129913bb61f3e
Formbook
0c99ac0f354ca12ab65c083c65b5d82ee242f9dbc2e5bdc8d9354959d655af52
Formbook
0dd1d1a74f49a15f9b7dcfc7890060807198b74b835cb17f60886a0f2c9c1376
Formbook
15f8c1d4ad187f29c83ba9f6b107f4ef91fe5dd1049c10cf157fdd023aec3738
Formbook
1e127318c1ce80a94092d002caa752b9e4a8c0ad1c8c86953389ba05b9b24eb2
Formbook
74f7661ce543ece586c81b95a2ee3174ca65e17369a90bb6522aa1cd34524754
Formbook
a9dc361f5933942780cffbc0143cbddce7533683de60dd9eb338b67d8da8fbc0
Formbook
b3ed34a29e5f12e26bb2187af89fbca79454c460674ad4fe727f475bbfee6d6b
Formbook
d4c0cb5e9b6e52ff60edcb98ec30081a83a0e1949728158e52a5c1bd63ece478
Formbook
fccf57db9ef1edb43daabe262bc2bca44423ac7beab6249ceba5f87d0d15f97f
Formbook
+ 17'029 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence spyware stealer
Link:
https://tria.ge/reports/221227-kjqczaee69/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Executes dropped EXE
Unpacked files
SH256 hash:
830fe77f96cfe617f3c7460242d5e712ab122c70f93010dbcd9831106d6b9ebc
MD5 hash:
10a3ceca0aaee1109d5a44db0143d4f9
SHA1 hash:
7cb5e9081618e1f3e033496ebb82fb4465085a16
Detections:
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/00c7b0c2-46f9-4f1d-9c63-48defe84bb57/
Parent samples :
e3893f3270b5ead3eb868d6e61621c62f71fe67978899a57df0052a4d8ca9420
147b4695ce4a9f5b5dc4bab3463c37b5b784232f52cbb9bb9df329192365a740
afa56c374ca61f2d93eb8e5a1120b49fd474f0631ed1c9b55e4c715803cc897f
dcef53803395ab07ecfa4230ae586003b507e875cd93bae17648c47b536a7622
0f5f7021de995c69c5f6662b9150c780aa38ff8d11b335689a93a519b741fb6f
d6151fa41e2b098903102cd0a26119b4b606176b9ee9d62d5f4f155aef2b23a6
SH256 hash:
33c40f3f8296be04ecc1e1a7c927f2e11db8c9891983f345e09ebebb792b89bf
MD5 hash:
ac1d03af566f295587fe898e98664292
SHA1 hash:
626dc3e9dfe2fbcdd25ef5fda1b576f27b126c11
Link:
https://www.unpac.me/results/00c7b0c2-46f9-4f1d-9c63-48defe84bb57/
SH256 hash:
4b9f3369268175133728964cf08a939b4a37503c186f0b9ba4d41b7bca8bd055
MD5 hash:
d68e2e903e1582c263d780139aab0407
SHA1 hash:
4e48b85df5e5e2d753457af35b30b6a67697a551
Link:
https://www.unpac.me/results/00c7b0c2-46f9-4f1d-9c63-48defe84bb57/
SH256 hash:
dcef53803395ab07ecfa4230ae586003b507e875cd93bae17648c47b536a7622
MD5 hash:
5a2e45271530271caad2f24c11593abc
SHA1 hash:
c1f80783a4dea6938a2dae2f2bf3184990781273
Link:
https://www.unpac.me/results/00c7b0c2-46f9-4f1d-9c63-48defe84bb57/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dcef53803395/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/dcef53803395ab07ecfa4230ae586003b507e875cd93bae17648c47b536a7622

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:sfx_pdb
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.

File information

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

Malspam

Formbook

Executable exe dcef53803395ab07ecfa4230ae586003b507e875cd93bae17648c47b536a7622

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments