MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 88043d723394b97599313522b0a2f599f8678529ba0febfebb6642cc966bde94. 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: 16


Intelligence 16 IOCs YARA 8 File information Comments
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SHA256 hash: 88043d723394b97599313522b0a2f599f8678529ba0febfebb6642cc966bde94
SHA3-384 hash: b2e79dff3cb8190704fd60780e8f050db26a2b8cea246cc03d911e24f8b1aef83b29e16b00b669d7ca98cea7e879fcb8
SHA1 hash: 627a3f2e35c8e550bc7cf2d56f99465140769e74
MD5 hash: 17fbfa2805b6deae6b93596eb05e79c5
humanhash: oscar-september-moon-two
File name:Halkbank_Ekstre_20191102_073809_405251-PDF.com
Download: download sample
Signature Formbook
Create hunting rule
File size:277'737 bytes
First seen:2023-02-21 13:14:21 UTC
Last seen:2023-02-21 14:36:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:/Ya6uyt65+KGSWser7nmagsaqBQXeDCawbUOlLeLNkfz:/YYyseHmag9+3VQLAoz
Threatray 2'073 similar samples on MalwareBazaar
TLSH T160441258B2B4E4E7ED7848B61E7E4D0AAFF4E921016A070B5F10658DBD35362E58F703
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
212
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Halkbank_Ekstre_20191102_073809_405251-PDF.com
Verdict:
Malicious activity
Analysis date:
2023-02-21 13:17:47 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/1af3b381-f19c-4cf1-9d2d-2643d9d37c19

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/368631/
Detection(s):
SecuriteInfo.com.Trojan.Loader.1313.13311.5640.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/71958/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63f4c3d7e6a5b4588ca121ce/reports/9d222084-0036-411c-88ec-a0e586338385/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/88043d723394b97599313522b0a2f599f8678529ba0febfebb6642cc966bde94
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e11bbfec-b61c-41f1-b484-9f64933fdebc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1179751
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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 signatures2 2 Behavior Graph ID: 812582 Sample: Halkbank_Ekstre_20191102_07... Startdate: 21/02/2023 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic 2->40 42 Multi AV Scanner detection for domain / URL 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 4 other signatures 2->46 9 Halkbank_Ekstre_20191102_073809_405251-PDF.com.exe 19 2->9         started        process3 file4 28 C:\Users\user\AppData\Local\Temp\xuylbr.exe, PE32 9->28 dropped 12 xuylbr.exe 1 9->12         started        process5 signatures6 60 Detected unpacking (changes PE section rights) 12->60 62 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->62 64 Maps a DLL or memory area into another process 12->64 15 xuylbr.exe 12->15         started        18 conhost.exe 12->18         started        process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 15->66 68 Maps a DLL or memory area into another process 15->68 70 Sample uses process hollowing technique 15->70 72 Queues an APC in another process (thread injection) 15->72 20 explorer.exe 4 6 15->20 injected process9 dnsIp10 30 www.energybig.xyz 184.94.215.91, 49700, 49701, 80 VXCHNGE-NC01US United States 20->30 32 cutgang.net 194.102.227.30, 80 VODAFONE_ROCharlesdeGaullenr15RO Romania 20->32 34 2 other IPs or domains 20->34 48 System process connects to network (likely due to code injection or exploit) 20->48 50 Performs DNS queries to domains with low reputation 20->50 24 cmd.exe 13 20->24         started        signatures11 process12 dnsIp13 36 www.cutgang.net 24->36 38 cutgang.net 24->38 52 Tries to steal Mail credentials (via file / registry access) 24->52 54 Tries to harvest and steal browser information (history, passwords, etc) 24->54 56 Modifies the context of a thread in another process (thread injection) 24->56 58 Maps a DLL or memory area into another process 24->58 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/88043d723394b97599313522b0a2f599f8678529ba0febfebb6642cc966bde94/
Threat name:
Win32.Trojan.InjectorX
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Status:
Malicious
First seen:
2023-02-21 11:54:38 UTC
AV detection:
9 of 39 (23.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=racd24rtss4xlgjrgurlbixvth4gpbjjxih6x7v3mzbmzftl32ka._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
05977847b0408ec1abb7b4cd05ad10b4004c97d5c949e579d695d47518f4f376
Formbook
128505a47c9f43ff7ee232ae8e617756b0fc1bef2548dd893245514008dfbe58
Formbook
1429c1abb9518085745981f85593eaab6a5712ee9df8324e4e10e0b1bd42d54f
Formbook
39156092712f27714fed918a43876cd6b85c9ad6d3ab6b96fe22e49eb2f34346
Formbook
5f2de407396cfb921e5db52d5efb0fbfd44e7257630b079e02f83a1ed61ab4b4
Formbook
f3197cca74f60c552d9d3b4d04d99996ceca8c8dc6ad845a468c10c65062a0fc
Formbook
+ 2'063 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230221-qg8dnaeh37/
Behaviour
Enumerates system info in registry
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
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Unpacked files
SH256 hash:
a04b76f610b02495c018edd285d0004d4e06f7ad4ce39e938966394ebdefcde8
MD5 hash:
96a17d5334b1a3f2773f163e41dd53cf
SHA1 hash:
befef77ae3a287471fff5dd09b4ea5541c3344e4
Link:
https://www.unpac.me/results/edae2238-e18e-4e15-a6e8-11572d5d0c91/
SH256 hash:
88043d723394b97599313522b0a2f599f8678529ba0febfebb6642cc966bde94
MD5 hash:
17fbfa2805b6deae6b93596eb05e79c5
SHA1 hash:
627a3f2e35c8e550bc7cf2d56f99465140769e74
Link:
https://www.unpac.me/results/edae2238-e18e-4e15-a6e8-11572d5d0c91/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/88043d723394/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/88043d723394b97599313522b0a2f599f8678529ba0febfebb6642cc966bde94

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe 88043d723394b97599313522b0a2f599f8678529ba0febfebb6642cc966bde94

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/368631/

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