MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e827c29f504045d8e6d8a2eb622a571f83e1bf9afaa8f1b839af76f457b45135. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: e827c29f504045d8e6d8a2eb622a571f83e1bf9afaa8f1b839af76f457b45135
SHA3-384 hash: e8410bf2fec9709832f8176f727969e2659bc6c347767266868930265f14da2a5bf6bccfcdd94d0156113ec62281afda
SHA1 hash: 75d1a2b5c8cd64dbe8b6470e47c8016db541b794
MD5 hash: 984eae99ede6562cf394483a1600c4a3
humanhash: carbon-lemon-helium-moon
File name:Invoice 3284 sales invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:425'984 bytes
First seen:2021-10-18 02:18:09 UTC
Last seen:2021-10-18 03:10:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 6144:tngMQ+aLjZeVeSUUC7Cw8sHa+gTPox+o7Vu+o5sAUqYNY:C+a0VPUURwNano5vG9
TLSH T17894124137C8852BCB7C0A3860F3E3A5277898263D91D79E9D9A78DE1FF6B805D90643
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
222
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/198007/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.543.21532.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/616d0749db358dd15ebe4c20/reports/f89f25ec-09fb-4c15-8d30-7ac33a9b7e20/overview
Result
Verdict:
UNKNOWN
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/45f96e07-27d9-432f-85ce-b45245e0c8fb
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/871914
Signature
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
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 signatures2 2 Behavior Graph ID: 504342 Sample: Invoice 3284 sales invoice.exe Startdate: 18/10/2021 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Yara detected AntiVM3 2->51 53 10 other signatures 2->53 10 Invoice 3284 sales invoice.exe 7 2->10         started        process3 dnsIp4 45 192.168.2.1 unknown unknown 10->45 33 C:\Users\user\AppData\...\kHyhrJVfXUoPwc.exe, PE32 10->33 dropped 35 C:\...\kHyhrJVfXUoPwc.exe:Zone.Identifier, ASCII 10->35 dropped 37 C:\Users\user\AppData\Local\...\tmpC4F2.tmp, XML 10->37 dropped 39 C:\...\Invoice 3284 sales invoice.exe.log, ASCII 10->39 dropped 65 Injects a PE file into a foreign processes 10->65 15 Invoice 3284 sales invoice.exe 10->15         started        18 schtasks.exe 1 10->18         started        file5 signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 41 www.cryptopazar.com 104.21.5.151, 49831, 80 CLOUDFLARENETUS United States 20->41 43 www.zhizhengsf.com 20->43 55 System process connects to network (likely due to code injection or exploit) 20->55 26 control.exe 20->26         started        signatures11 process12 signatures13 57 Self deletion via cmd delete 26->57 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/e827c29f504045d8e6d8a2eb622a571f83e1bf9afaa8f1b839af76f457b45135/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-10-18 02:19:04 UTC
AV detection:
5 of 45 (11.11%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5at4fh2qibc5rzwyulvweksxd6b6dp427kupdobzv53piv5uke2q._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:r4gk rat spyware stealer trojan
Link:
https://tria.ge/reports/211018-crvcwsdac4/
Behaviour
Creates scheduled task(s)
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.aprilsaak.quest/r4gk/
Unpacked files
SH256 hash:
c61f6a0fd94660d9cc012788f67e089482e2b9743b00fa2c19dca96abfe833f6
MD5 hash:
8bb6b6d0be4eba9ea6eac2d16dc37860
SHA1 hash:
34e95e9a52e8252c6ef2d2d174834673afc3d0f7
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/f4ec82ba-8aae-444a-8689-f4f6c339c529/
Parent samples :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 hash:
7b4ba24781e21b310e2749bc2f7a80b9670a4198a54d26e42079a6a1c1be6ae7
MD5 hash:
7b77d210bf6b00fd8ee8187198852052
SHA1 hash:
7f78d6294a269349fc9a49ad3c8ccb3c3d2665b4
Link:
https://www.unpac.me/results/f4ec82ba-8aae-444a-8689-f4f6c339c529/
SH256 hash:
3b273e345605162128b3a491f9ac6c7d425cd5f319ef74727f25732668cd1c8a
MD5 hash:
6cea41d9a572b82e92132bcc07b71ef6
SHA1 hash:
1d8c69ac7085a08c10cfa2bd7098a68319c6d5f8
Link:
https://www.unpac.me/results/f4ec82ba-8aae-444a-8689-f4f6c339c529/
SH256 hash:
e827c29f504045d8e6d8a2eb622a571f83e1bf9afaa8f1b839af76f457b45135
MD5 hash:
984eae99ede6562cf394483a1600c4a3
SHA1 hash:
75d1a2b5c8cd64dbe8b6470e47c8016db541b794
Link:
https://www.unpac.me/results/f4ec82ba-8aae-444a-8689-f4f6c339c529/
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/e827c29f504045d8e6d8a2eb622a571f83e1bf9afaa8f1b839af76f457b45135

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
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Rule name:pe_imphash
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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 e827c29f504045d8e6d8a2eb622a571f83e1bf9afaa8f1b839af76f457b45135

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/198007/

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