MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1e4fa7f7eb360e8cbb35e8b8ff3939176c14d205e3161b63aae48d3db800d99. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1e4fa7f7eb360e8cbb35e8b8ff3939176c14d205e3161b63aae48d3db800d99
SHA3-384 hash: e60e5d7350d11dacb5dbce129becf5d542cc58782b4009ce869ab1b5af1e90f0c4685fc0f39cba9fb7fa6d889c2a1d25
SHA1 hash: f802fe1cecfb0d5b56658c2848948525bd61ae99
MD5 hash: c4c30b7b17dff33abc0f9c3c4bdf4ede
humanhash: stream-stairway-illinois-saturn
File name:Halkbank_Ekstre_20230127.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:650'240 bytes
First seen:2023-01-27 14:35:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:ggoYTYxllfw7N/qU8zhUkQiF3GNVIFoU3f/PDZLmG4mBgliPuT:XoYTY5fwR/NS9iU3NLmEBg4
TLSH T1F6D412417A8AA7A2DB6D1275C5DB053813E2EFC36673D2CA3D8876482F123F39E05785
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe FormBook geo Halkbank TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Halkbank_Ekstre_20230127.pdf.exe
Verdict:
No threats detected
Analysis date:
2023-01-27 14:44:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2d64d264-da20-4fa1-b76b-932c015b6282

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/357471/
Detection(s):
Win.Packed.Msilzilla-9966111-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/63d3e154447edb203a0174b7/reports/e08dff74-393f-4437-a587-ac423cfac617/overview
Result
Verdict:
UNKNOWN
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/d49ea4e2-80e0-423d-ad6e-7130a14250c1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1160295
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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)
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 793034 Sample: Halkbank_Ekstre_20230127.pdf.exe Startdate: 27/01/2023 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 8 other signatures 2->40 8 Halkbank_Ekstre_20230127.pdf.exe 1 2->8         started        process3 file4 24 C:\...\Halkbank_Ekstre_20230127.pdf.exe.log, CSV 8->24 dropped 50 Writes to foreign memory regions 8->50 52 Allocates memory in foreign processes 8->52 54 Injects a PE file into a foreign processes 8->54 12 CasPol.exe 8->12         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 12->56 58 Maps a DLL or memory area into another process 12->58 60 Sample uses process hollowing technique 12->60 62 Queues an APC in another process (thread injection) 12->62 15 explorer.exe 2 1 12->15 injected process8 dnsIp9 26 www.rfidsystem.click 113.160.180.216, 49714, 49716, 80 VNPT-AS-VNVNPTCorpVN Viet Nam 15->26 28 www.studiobeautyelena.ru 81.177.135.102, 49709, 49710, 80 RTCOMM-ASRU Russian Federation 15->28 30 10 other IPs or domains 15->30 32 System process connects to network (likely due to code injection or exploit) 15->32 19 chkdsk.exe 13 15->19         started        22 autofmt.exe 15->22         started        signatures10 process11 signatures12 42 Tries to steal Mail credentials (via file / registry access) 19->42 44 Tries to harvest and steal browser information (history, passwords, etc) 19->44 46 Modifies the context of a thread in another process (thread injection) 19->46 48 Maps a DLL or memory area into another process 19->48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1e4fa7f7eb360e8cbb35e8b8ff3939176c14d205e3161b63aae48d3db800d99/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-01-27 14:36:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6hspu736wnqors5tl2fy744tsf3mctjalyywdnr2vzenhw4abwmq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230127-ryk55abf75/
Behaviour
Modifies Internet Explorer settings
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
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
8668552c92dbf1be2b18838656b6c49e404c13f7645a22346fa25be6db71eeb9
MD5 hash:
f17ab417e84bc7293cd39bfae4fab8b3
SHA1 hash:
acd5a697a623295d4cd5d7c6584ef4ac0ec46197
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3f0d6536-ac3e-4b3b-a8da-56688bab7dde/
Parent samples :
f1e4fa7f7eb360e8cbb35e8b8ff3939176c14d205e3161b63aae48d3db800d99
f9d55b9da595432539830f1dc35cd8be32668d9eed89ea051fedbfd82e6ab1ed
SH256 hash:
33f204b4d1013957fa0d94f855ea77b965439b40298873a69d4c37041079682f
MD5 hash:
aa7654dcefbd85629c240178efa57bab
SHA1 hash:
1a93b91597c4e3748536b0d997011c4edeae932a
Link:
https://www.unpac.me/results/3f0d6536-ac3e-4b3b-a8da-56688bab7dde/
SH256 hash:
f1e4fa7f7eb360e8cbb35e8b8ff3939176c14d205e3161b63aae48d3db800d99
MD5 hash:
c4c30b7b17dff33abc0f9c3c4bdf4ede
SHA1 hash:
f802fe1cecfb0d5b56658c2848948525bd61ae99
Link:
https://www.unpac.me/results/3f0d6536-ac3e-4b3b-a8da-56688bab7dde/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f1e4fa7f7eb3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/f1e4fa7f7eb360e8cbb35e8b8ff3939176c14d205e3161b63aae48d3db800d99

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:BAZT_B5_NOCEXInvalidStream
Create hunting rule
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:NETDIC208_NOCEX_NOREACTOR
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/357471/

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