MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a27690306574d230791d1625c7657c8460a1ad5a3bc0187e28a7620f30da14fa. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a27690306574d230791d1625c7657c8460a1ad5a3bc0187e28a7620f30da14fa
SHA3-384 hash: b693f52a4e5347c67bb8de57bd11771d85b78e83caf8a5c13ffddbf5f17bb7c3619e8ba6eb1bc196f905ce73241c8bae
SHA1 hash: f5c499e26a082a97ab0c4f2fb8dba82f719a37be
MD5 hash: e5d39dbcb30238929cf0ace419b207e8
humanhash: may-august-papa-undress
File name:??????.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'174'528 bytes
First seen:2022-03-21 20:32:28 UTC
Last seen:2022-03-21 22:55:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:+by9e8ItJePeyuFyVU7/78m9w9BxanVR5VVuj+olvm:+aOtJePe/Fyuf19w9BxIT5VVu+olO
Threatray 10'284 similar samples on MalwareBazaar
TLSH T11B45E1AC325171EFC417CD728EA81DA4AA6135A7670BC60BA01705ADDE1DE93CF206F7
Reporter 604Kuzushi
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
241
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/253831/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.48676570.21399.25761.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe fareit obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/6238e106b94fb38cb4c6dcf5/reports/57c91655-b4ec-4840-ab3e-46cf7d2020f2/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/71c96dad-18a5-477a-a7c1-7fd15ccbe261
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/961204
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for dropped file
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 593681 Sample: ______.exe Startdate: 21/03/2022 Architecture: WINDOWS Score: 100 45 www.neoboss2022.biz 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 11 other signatures 2->53 11 ______.exe 7 2->11         started        signatures3 process4 file5 37 C:\Users\user\AppData\Roaming\AHPAQxU.exe, PE32 11->37 dropped 39 C:\Users\user\...\AHPAQxU.exe:Zone.Identifier, ASCII 11->39 dropped 41 C:\Users\user\AppData\Local\...\tmpEF3F.tmp, XML 11->41 dropped 43 C:\Users\user\AppData\...\______.exe.log, ASCII 11->43 dropped 55 Uses schtasks.exe or at.exe to add and modify task schedules 11->55 57 Adds a directory exclusion to Windows Defender 11->57 15 RegSvcs.exe 11->15         started        18 powershell.exe 23 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 2 other signatures 15->71 22 explorer.exe 15->22 injected 24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        process9 process10 28 help.exe 22->28         started        31 autoconv.exe 22->31         started        signatures11 59 Modifies the context of a thread in another process (thread injection) 28->59 61 Maps a DLL or memory area into another process 28->61 63 Tries to detect virtualization through RDTSC time measurements 28->63 33 cmd.exe 1 28->33         started        process12 process13 35 conhost.exe 33->35         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a27690306574d230791d1625c7657c8460a1ad5a3bc0187e28a7620f30da14fa/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-03-20 23:52:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uj3jamdfotjda6i5cys4ozl4qrqkdlk2hpabq7riu5ra6mg2ct5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0488a1801640896ea2e4922dcd03d47bea603db8b938aa2060bd529060ec37fd
Formbook
2bb47abc0ec7e4e48aa80d53e19056c6adbef6b1392b3816aa335364325870fb
Formbook
9621e6459dc138fb11bc279b6583fc68eed0db7b284e198c74dda8385db8ce0d
Formbook
b36891ab4a7fa6be1680a65614dd5551a3fa8a89052c381a954601eedd82e62c
Formbook
c68894e6a7551cdf34c082a0ba372f9544d07aee0f2d09dfb7fed3e664e91aaf
Formbook
c6a3fd36f07d97fb287fbac946ae8b8d12d1fcde36fa87395de79d59f0c3fb77
Formbook
c86f3a2110ed2a8498cf30d4ab88cf9ea18edc612835fe2b369e7596dafb802e
Formbook
ca77df966e202e0eab6d3c2280f95fb59aee28b5e9e540be3dca1d66c46bf2af
Formbook
d89f28603b8948dd7217e42366328a6e9bd05d59e5de67a4c39f207f8a520d43
Formbook
+ 10'274 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:gn27 rat spyware stealer trojan
Link:
https://tria.ge/reports/220321-zbveaadfh5/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
7736b46a6d7f155c6b051d6a5bfef49217f03b26ea1e708fd5801c210bbde1a1
MD5 hash:
1a47d2494cc5f0a9acd4353529c3dc9f
SHA1 hash:
3cdf7e195ad8a5b11f9cd29f294cb4f8e86806c4
Link:
https://www.unpac.me/results/d33cf9d2-ebd0-4839-8419-7f8d7bead3de/
SH256 hash:
e0074e9fe755525ba3d2f594130c6a5501daccdcdddc3a7ba1f69240a11212ff
MD5 hash:
abd6486bd017165cb9e3bb251ad20a9c
SHA1 hash:
9c1aaac2cfdffbd8f6995d621a4710d40f841b36
Link:
https://www.unpac.me/results/d33cf9d2-ebd0-4839-8419-7f8d7bead3de/
SH256 hash:
6ff21c090296e9fd3ec2b17e03e184e2396adf4013b2a4f4c9dea5bd7aff38f7
MD5 hash:
7c3fb3e3d91e338ae917c4cb46895e71
SHA1 hash:
ba577b8ccb3c6bbc5e9e3a838aec98859cd4dbaa
Link:
https://www.unpac.me/results/d33cf9d2-ebd0-4839-8419-7f8d7bead3de/
SH256 hash:
4af67fe719b6d568f75355ea4ea17bb40829338b1808924bdfdb00983879116d
MD5 hash:
de9a3c641eee60c823d76777dc7dfff7
SHA1 hash:
0eed800b61726aef17a63451f1c43dd844a58b29
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d33cf9d2-ebd0-4839-8419-7f8d7bead3de/
Parent samples :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 hash:
a27690306574d230791d1625c7657c8460a1ad5a3bc0187e28a7620f30da14fa
MD5 hash:
e5d39dbcb30238929cf0ace419b207e8
SHA1 hash:
f5c499e26a082a97ab0c4f2fb8dba82f719a37be
Link:
https://www.unpac.me/results/d33cf9d2-ebd0-4839-8419-7f8d7bead3de/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a27690306574/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/a27690306574d230791d1625c7657c8460a1ad5a3bc0187e28a7620f30da14fa

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.

Malspam

Formbook

Executable exe a27690306574d230791d1625c7657c8460a1ad5a3bc0187e28a7620f30da14fa

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/253831/

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