MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8ee338d80b7be8f4e1bc7b6fa10890a9f5575ea4ea8fa3db547f9f0abc22c64. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8ee338d80b7be8f4e1bc7b6fa10890a9f5575ea4ea8fa3db547f9f0abc22c64
SHA3-384 hash: 1967ca44469db5040083d7e193aa60da92c1724997a44444be5e60b2d833acfc65022428ec61ce8d897d8f4619b1f18b
SHA1 hash: 70156cc2b5d2b93045c0efe6511557cd00ae373a
MD5 hash: 676703938dcc35c7ff494355bc00d067
humanhash: zebra-fourteen-lactose-ten
File name:676703938dcc35c7ff494355bc00d067.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'234'320 bytes
First seen:2022-07-26 16:07:36 UTC
Last seen:2022-07-26 17:50:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3c28622a06e2435b829e7b3d3e133da6 (2 x RecordBreaker, 1 x Formbook, 1 x RemcosRAT)
ssdeep 24576:7ABseC7Q+9z3uCeOn6RKjBc0Osczw4bR8nqS/+7U1dnShMSL7wvu+nZFNd:7A6Nn3peE+vzn8n9G6dnSiS7wvhd
TLSH T188A526BA57BAEA89E4401A39B97D93EF9B3D4C81363C90738344354C9DBB32B36C4459
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 8e0749556565338e (1 x Formbook, 1 x EternityStealer)
Reporter abuse_ch
Tags:exe FormBook signed

Code Signing Certificate

Organisation:www.genengnews.com
Issuer:Amazon
Algorithm:sha256WithRSAEncryption
Valid from:2022-01-12T00:00:00Z
Valid to:2023-02-10T23:59:59Z
Serial number: 0a858caf7759d0d0cc9d52e52fd84ee1
Intelligence: 4 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 54ede77a884f0a6293f94b2a58901aae6cb108237deb463ac41d0ec40e429c9a
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
411
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/294411/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.28759.19354.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/27536/overview
Behaviour
MalwareBazaar
MeasuringTime
SystemUptime
EvasionQueryPerformanceCounter
EvasionGetTickCount
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware overlay packed
Link:
https://www.filescan.io/uploads/62e0118c7dd0cb902f01596b/reports/ee13aee7-8b0d-4862-950a-7195f1c28f40/overview
Result
Verdict:
SUSPICIOUS
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/fa11b58f-29af-43ab-a876-3faea1835fdb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1041235
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
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 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 detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 673734 Sample: FFJddC8bXz.exe Startdate: 26/07/2022 Architecture: WINDOWS Score: 100 50 www.prmainey.com 2->50 52 Snort IDS alert for network traffic 2->52 54 Multi AV Scanner detection for domain / URL 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 6 other signatures 2->58 11 FFJddC8bXz.exe 2->11         started        signatures3 process4 signatures5 74 Writes to foreign memory regions 11->74 76 Allocates memory in foreign processes 11->76 78 Injects a PE file into a foreign processes 11->78 14 InstallUtil.exe 11->14         started        process6 signatures7 82 Modifies the context of a thread in another process (thread injection) 14->82 84 Maps a DLL or memory area into another process 14->84 86 Sample uses process hollowing technique 14->86 88 2 other signatures 14->88 17 explorer.exe 3 6 14->17 injected process8 dnsIp9 44 www.vybaveniprocyklostezky.com 81.91.86.14, 49699, 80 WEB4UCZ Czech Republic 17->44 46 www.nusires.com 68.65.121.68, 49706, 80 NAMECHEAP-NETUS United States 17->46 48 22 other IPs or domains 17->48 42 C:\Users\user\AppData\Local\...\4h6i6ql.exe, PE32 17->42 dropped 60 System process connects to network (likely due to code injection or exploit) 17->60 62 Benign windows process drops PE files 17->62 64 Performs DNS queries to domains with low reputation 17->64 22 rundll32.exe 1 12 17->22         started        25 4h6i6ql.exe 4 17->25         started        27 4h6i6ql.exe 3 17->27         started        file10 signatures11 process12 signatures13 66 Tries to steal Mail credentials (via file / registry access) 22->66 68 Tries to harvest and steal browser information (history, passwords, etc) 22->68 70 Modifies the context of a thread in another process (thread injection) 22->70 72 2 other signatures 22->72 29 cmd.exe 2 22->29         started        32 cmd.exe 1 22->32         started        34 conhost.exe 25->34         started        36 conhost.exe 27->36         started        process14 signatures15 80 Tries to harvest and steal browser information (history, passwords, etc) 29->80 38 conhost.exe 29->38         started        40 conhost.exe 32->40         started        process16
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a8ee338d80b7be8f4e1bc7b6fa10890a9f5575ea4ea8fa3db547f9f0abc22c64/
Threat name:
Win32.Trojan.Chapak
Create hunting rule
Status:
Malicious
First seen:
2022-07-26 14:10:28 UTC
File Type:
PE (Exe)
Extracted files:
30
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vdxdhdmaw67i6tq3y63pueejbkpvk5pkj2upupnvi747bk6cfrsa._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:formbook family:xloader campaign:mt88 loader persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/220726-tk8qdabdcr/
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
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:
491b58cd14ab3e8d5c43f94a562342201d12c0ae0ef4900562525caf02342a3e
MD5 hash:
2940263c7ca3f82b3f9c7936b3128e58
SHA1 hash:
aa233f71dde2ca9030c4ab997245297c45f86fc5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
XLoader
Create hunting rule
Link:
https://www.unpac.me/results/011dd6e3-f4bf-4e6c-a225-8865d430f9ea/
Parent samples :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 hash:
d901f39703ddfbc563058ad76241e57a13331c78a38c88ebfea1f3c2997be747
MD5 hash:
d574b24b70a83c61f2b381af6f78d7f6
SHA1 hash:
691bbbc4e03d0f5793c15080d25e6d93abe03066
Link:
https://www.unpac.me/results/011dd6e3-f4bf-4e6c-a225-8865d430f9ea/
SH256 hash:
a8ee338d80b7be8f4e1bc7b6fa10890a9f5575ea4ea8fa3db547f9f0abc22c64
MD5 hash:
676703938dcc35c7ff494355bc00d067
SHA1 hash:
70156cc2b5d2b93045c0efe6511557cd00ae373a
Link:
https://www.unpac.me/results/011dd6e3-f4bf-4e6c-a225-8865d430f9ea/
Please note that we are no longer able to provide a coverage score for Virus Total.

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

File information

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

Web download

Formbook

Executable exe a8ee338d80b7be8f4e1bc7b6fa10890a9f5575ea4ea8fa3db547f9f0abc22c64

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2261596/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/294411/

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