MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a4ae03f91651565110206dc65675925684c17315ef97e2bac31612f04585288. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a4ae03f91651565110206dc65675925684c17315ef97e2bac31612f04585288
SHA3-384 hash: 6f06669ee478145d2a0d64d95ec5220ffdb16faa697567a016be6ed2a4b6909e4e85033c96509fc68ac6358a18492e2f
SHA1 hash: 033a5f09b25ee8153fdc795e1709513c218dce37
MD5 hash: f468b1ce51fc8763ef64d16109f5930e
humanhash: football-quiet-virginia-golf
File name:f468b1ce51fc8763ef64d16109f5930e.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:648'704 bytes
First seen:2022-05-23 17:04:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:PydLUc2iNRuSdjGfv29RNvPQqtO4lnHYhXugBV3cOFAn5IXVt:PyP13bmv29bjl4hXugpF1
Threatray 15'794 similar samples on MalwareBazaar
TLSH T100D4F108E762AEE0F42D13BD747095A62F71DF21E4BEDA2E25A1361B08312C34567DE7
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
274
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f468b1ce51fc8763ef64d16109f5930e.exe
Verdict:
Malicious activity
Analysis date:
2022-05-23 17:11:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dee18366-dea0-4b8f-947c-a2d962b462f5

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/273825/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook obfuscated packed
Link:
https://www.filescan.io/uploads/628bbec3945ebb7eb1776df4/reports/5f8eb3be-b3c8-4968-aa0f-c251d5762f8c/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5a45acb3-ad83-48c8-8a07-0d620a6e0f57
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1000061
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 632559 Sample: r8wiM6ut34.exe Startdate: 23/05/2022 Architecture: WINDOWS Score: 100 31 www.wildercation.com 2->31 33 www.iksbs-a02.com 2->33 41 Snort IDS alert for network traffic 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 8 other signatures 2->47 11 r8wiM6ut34.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\r8wiM6ut34.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 15 r8wiM6ut34.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 70552.cdn-ent-us01.ymcart.net 104.18.19.163, 49773, 80 CLOUDFLARENETUS United States 18->35 37 www.aaronclayton.com 3.136.101.224, 49779, 80 AMAZON-02US United States 18->37 39 4 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 wlanext.exe 18->22         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5a4ae03f91651565110206dc65675925684c17315ef97e2bac31612f04585288/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-23 08:49:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
335fa8671bb1ef8659247de4bed05898512fb3a056ef6deb31849eefef8a4743
Formbook
44efc16357b00b2bd0300a07290a4000bbbce558771f5efbaa74909dcf8eb34f
Formbook
6532ef52b6dc45894c81610a5f29adf7b5668da4014bd0bbe549f31657b80633
Formbook
66ed20e609a1c10376f30415f4f2a03aa274fbdaaa12925dcc81ed74bfb7fdfa
Formbook
772d929d92df65dbf1317692104071529b8519e077df827e5d02dc59c5ede773
Formbook
c16dcddd7b9501bce324b49c9906488bb7a5467789381766801dfd7ce2d13a1a
Formbook
cb211078773205b00dfbb29da746dde5cd2a3c25f8e141da84fa8d07379ed778
Formbook
f1b06407f8fe5e17a2bca06f7c7d54711f41df69163f3e9027c7521c0b17a864
Formbook
+ 15'784 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:mczr loader rat
Link:
https://tria.ge/reports/220523-vls7ragba5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
6c798def3c23c25f051c013ff3416c940838f255ef4874ebe83cd847064e8d89
MD5 hash:
f591706d8889373fea81b4db7a94fc80
SHA1 hash:
f0648f98fe2870cdb15575cb311c63cd5f1c5084
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3bc9d824-9372-45cd-a6b2-769f3f1e2760/
Parent samples :
6532ef52b6dc45894c81610a5f29adf7b5668da4014bd0bbe549f31657b80633
5a4ae03f91651565110206dc65675925684c17315ef97e2bac31612f04585288
SH256 hash:
187700e1704dbfc438d8e0e47ed6d15b4d4e0bffa638216eddfcc51ec0a2d617
MD5 hash:
3a0fe46229da323fff01b7e23b6c484b
SHA1 hash:
f795f8ad1a08e3ab98bc3db2b51683fdfba99f66
Link:
https://www.unpac.me/results/3bc9d824-9372-45cd-a6b2-769f3f1e2760/
SH256 hash:
ee9f72ee0ce283b3398ccd2c2bfa474bb760a24f522b4ea17f97b66986343acf
MD5 hash:
a4edf225b44ba2942836efaa87a8ac32
SHA1 hash:
d6c510db61b281c06ee1006d73a0b523fbb731d6
Link:
https://www.unpac.me/results/3bc9d824-9372-45cd-a6b2-769f3f1e2760/
SH256 hash:
05c83f58c5c2f585ed1e4c498d925a4eec513e00b41e876a96b74d647e5815ad
MD5 hash:
aea6034666961fb04ca1fc61efa75c5e
SHA1 hash:
3a875af297d7b3513689f36655ac6b9041984298
Link:
https://www.unpac.me/results/3bc9d824-9372-45cd-a6b2-769f3f1e2760/
SH256 hash:
5a4ae03f91651565110206dc65675925684c17315ef97e2bac31612f04585288
MD5 hash:
f468b1ce51fc8763ef64d16109f5930e
SHA1 hash:
033a5f09b25ee8153fdc795e1709513c218dce37
Link:
https://www.unpac.me/results/3bc9d824-9372-45cd-a6b2-769f3f1e2760/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5a4ae03f9165/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5a4ae03f91651565110206dc65675925684c17315ef97e2bac31612f04585288

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: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.

Web download

Formbook

Executable exe 5a4ae03f91651565110206dc65675925684c17315ef97e2bac31612f04585288

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/273825/
  
URLhaus
https://urlhaus.abuse.ch/url/2176419/
  
Delivery method
Distributed via web download

Comments