MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2d8e544f10af06bd50beb47f3b24b837e876bcf2464bf5048a578c4111a23d1d. 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 7 File information Comments
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SHA256 hash: 2d8e544f10af06bd50beb47f3b24b837e876bcf2464bf5048a578c4111a23d1d
SHA3-384 hash: 519f42490ab727cb67eb05d05ecff1f36eeff952a1ef7b4a7ce8102224a431605a2ad6ae5ea2dc0b9a248491b4a11187
SHA1 hash: ba11a4cd9fee1517dec84041fd85fb0d9dcc0270
MD5 hash: 8e4837c1af544798e66033ff94178202
humanhash: romeo-quebec-connecticut-march
File name:2d8e544f10af06bd50beb47f3b24b837e876bcf2464bf5048a578c4111a23d1d
Download: download sample
Signature Formbook
Create hunting rule
File size:287'123 bytes
First seen:2023-02-06 14:36:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 6144:/Ya6+fE/IWg+ZGjDmYS3g3qtKTaXig5hKFUCvuxK1Zj1SkG:/Y4fmI0G/oLXig5hEUVK1ZBFG
TLSH T13E541228B390C0BBDD5319B2877B4376AF61DD1A16A4B74F07705B1C3E39312A88DB96
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
181
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
kelemu.exe
Verdict:
Malicious activity
Analysis date:
2023-01-30 09:58:12 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/973e5486-cc5b-4127-9fac-cc01289334d8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/360919/
Detection(s):
SecuriteInfo.com.Variant.Lazy.263633.1152.22786.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
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/65805/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63e1108f416d38777a7a9a8d/reports/0a0f2596-9641-47ce-8a3c-8f4715e68065/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/2d8e544f10af06bd50beb47f3b24b837e876bcf2464bf5048a578c4111a23d1d
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/0f095588-7a96-4c7a-b7b0-742a64dab1f4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1166719
Signature
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
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 dropped file
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
Sigma detected: Steal Google chrome login data
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
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: 799491 Sample: ytsdDgpZ2U.exe Startdate: 06/02/2023 Architecture: WINDOWS Score: 100 67 Snort IDS alert for network traffic 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus detection for URL or domain 2->71 73 6 other signatures 2->73 11 ytsdDgpZ2U.exe 19 2->11         started        process3 file4 45 C:\Users\user\AppData\Local\...\gpfxtha.exe, PE32 11->45 dropped 14 gpfxtha.exe 11->14         started        process5 signatures6 89 Multi AV Scanner detection for dropped file 14->89 91 Detected unpacking (changes PE section rights) 14->91 93 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->93 95 2 other signatures 14->95 17 gpfxtha.exe 14->17         started        process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 17->59 61 Maps a DLL or memory area into another process 17->61 63 Sample uses process hollowing technique 17->63 65 Queues an APC in another process (thread injection) 17->65 20 explorer.exe 10 16 17->20 injected process9 dnsIp10 49 www.indumentaria.org 91.195.240.94, 49696, 80 SEDO-ASDE Germany 20->49 51 www.edfitzgerald.org 167.114.206.193, 49699, 80 OVHFR Canada 20->51 53 25 other IPs or domains 20->53 43 C:\Users\user\AppData\...\wb-zrf0p8l.exe, PE32 20->43 dropped 75 System process connects to network (likely due to code injection or exploit) 20->75 77 Benign windows process drops PE files 20->77 79 Performs DNS queries to domains with low reputation 20->79 25 rundll32.exe 1 12 20->25         started        29 wb-zrf0p8l.exe 20->29         started        file11 signatures12 process13 dnsIp14 55 www.797322.com 25->55 81 System process connects to network (likely due to code injection or exploit) 25->81 83 Tries to steal Mail credentials (via file / registry access) 25->83 85 Modifies the context of a thread in another process (thread injection) 25->85 87 2 other signatures 25->87 31 cmd.exe 2 25->31         started        35 cmd.exe 1 25->35         started        37 WerFault.exe 10 29->37         started        signatures15 process16 file17 47 C:\Users\user\AppData\Local\Temp\DB1, SQLite 31->47 dropped 57 Tries to harvest and steal browser information (history, passwords, etc) 31->57 39 conhost.exe 31->39         started        41 conhost.exe 35->41         started        signatures18 process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2d8e544f10af06bd50beb47f3b24b837e876bcf2464bf5048a578c4111a23d1d/
Threat name:
Win32.Trojan.RealProtect
Create hunting rule
Status:
Malicious
First seen:
2023-01-30 12:52:05 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
27 of 39 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fwhfityqv4dl2uf6wr7twjfyg7uhnphsizf7kbekk6gecenchuoq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:formbook family:xloader campaign:poub loader persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/230206-ry5jrshf6y/
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
System policy modification
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Adds policy Run key to start application
Blocklisted process makes network request
Xloader payload
Formbook
Xloader
Unpacked files
SH256 hash:
d2521702919bed257020d11081d927dea7d264ce3fa2c1d402ef63092b4137b4
MD5 hash:
58a53663c36b38e16632b01b6e04171f
SHA1 hash:
b93818768f84a83aa9718300bf7f243990be96b7
Link:
https://www.unpac.me/results/60a75eef-3892-4e07-a043-c676a658536e/
SH256 hash:
2d8e544f10af06bd50beb47f3b24b837e876bcf2464bf5048a578c4111a23d1d
MD5 hash:
8e4837c1af544798e66033ff94178202
SHA1 hash:
ba11a4cd9fee1517dec84041fd85fb0d9dcc0270
Link:
https://www.unpac.me/results/60a75eef-3892-4e07-a043-c676a658536e/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2d8e544f10af/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/2d8e544f10af06bd50beb47f3b24b837e876bcf2464bf5048a578c4111a23d1d

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/360919/

Comments