MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb31038cbb2b0d3e01fb7f461a30ff7210a6f2062bd7d373afe739a701714108. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fb31038cbb2b0d3e01fb7f461a30ff7210a6f2062bd7d373afe739a701714108
SHA3-384 hash: 23a80e5bdb68ece24f09278cec143e485fd394d481edbd4d69926508e87a4dd8d0acf287da24433da4f827356be1c137
SHA1 hash: bd5e7aec31fb0ed9eacbd8b4cc01ba753895b721
MD5 hash: ca3f9d838a7e53b679ef645dcb2eb15a
humanhash: undress-indigo-california-violet
File name:euro order.scr
Download: download sample
Signature Formbook
Create hunting rule
File size:584'704 bytes
First seen:2022-10-28 08:17:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:mh702iNn2iNRN0C2CkZ+bGF13DfdlY7uYPShloJLj+:31B1yMkZIO1zfzY7TWn
TLSH T1E4C42322A2679727CE6B43F02C974D54D3B56C06A9E2E5626DE773CE2972F000215EF3
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
euro order.scr
Verdict:
Malicious activity
Analysis date:
2022-10-28 09:18:55 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/dd2b1d8c-0f46-4889-bb0e-3e4bd8c65c0d

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/325427/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/635ba5bda5db8d309cbba23a/reports/f229fcf9-1dc0-4364-8cbd-b5725b4a0222/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:
Unknown
Link:
https://analyze.intezer.com/analyses/7c5d370f-c5b0-4432-9f5c-a946233702d6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1100213
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fb31038cbb2b0d3e01fb7f461a30ff7210a6f2062bd7d373afe739a701714108/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-10-25 17:02:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
27 of 41 (65.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7myqhdf3fmgt4ap3p5dbumh7oiikn4qgfpl5g45p4442oalrieea._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:p94a rat spyware stealer trojan
Link:
https://tria.ge/reports/221028-j69vfsfae2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Gathering data
Unpacked files
SH256 hash:
535a0b3e0596a26dedd145e0732fa69f4eb42d2c9a87a972b44e79e2fd76f825
MD5 hash:
7241a753759b2ab23fa2d871a760c331
SHA1 hash:
9e5baa96017ff6de28cf1dabcc15baf3e9e35676
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/98f31e71-44e3-4be9-96f7-e4b332c10be2/
Parent samples :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 hash:
248a7c4997aacb14ca032daf9668636839f921d0a3403f09a3b0ccfdc948cbf1
MD5 hash:
a7952169b04a2c6a39661aad59e79dcf
SHA1 hash:
88722f1a32c913307c0c6385b04478a79fabd12b
Link:
https://www.unpac.me/results/98f31e71-44e3-4be9-96f7-e4b332c10be2/
SH256 hash:
6131404a972de637d96e42a92e3c2daa991cc2fb6d8512c58ada1efc44aab9ba
MD5 hash:
ccc2cb08027337aeba359852fd1dd6b8
SHA1 hash:
512e8a0f2a44bfe103afea2a4ae07a457aafd96e
Link:
https://www.unpac.me/results/98f31e71-44e3-4be9-96f7-e4b332c10be2/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/98f31e71-44e3-4be9-96f7-e4b332c10be2/
SH256 hash:
b206ae7a0e8d3f85375c3f7e5c6557c33a7cffabfab386b0cc5b53b9012772c3
MD5 hash:
932275696c18d401502325615593ddf9
SHA1 hash:
227736b8cfcb65cf7ef52e0ff8aae44d6ce4cac5
Link:
https://www.unpac.me/results/98f31e71-44e3-4be9-96f7-e4b332c10be2/
SH256 hash:
fb31038cbb2b0d3e01fb7f461a30ff7210a6f2062bd7d373afe739a701714108
MD5 hash:
ca3f9d838a7e53b679ef645dcb2eb15a
SHA1 hash:
bd5e7aec31fb0ed9eacbd8b4cc01ba753895b721
Link:
https://www.unpac.me/results/98f31e71-44e3-4be9-96f7-e4b332c10be2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/fb31038cbb2b0d3e01fb7f461a30ff7210a6f2062bd7d373afe739a701714108

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: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

Formbook

Executable exe fb31038cbb2b0d3e01fb7f461a30ff7210a6f2062bd7d373afe739a701714108

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/325427/

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