MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c71e73a5006f03bf63ad6099f034a3d19a130a6893979c43318eca2cb6bfd224. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c71e73a5006f03bf63ad6099f034a3d19a130a6893979c43318eca2cb6bfd224
SHA3-384 hash: 3b9c6934142a8a7a2169ee829096e16c8d3ae7ab2919960e4d9dcdad9e2d6952103e801ca217f4f96f97785350e6cfc6
SHA1 hash: 848fbf31e11e6deab665076c820169a8f0ed730c
MD5 hash: 199fb0f822a8e86ff1cfb61d9051414a
humanhash: tennis-maine-december-oranges
File name:Proforma invoiceShipping documents.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'129'472 bytes
First seen:2021-08-26 23:16:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:DRN4OIgraLvl3A35Va0XrNd80bmDg0ZHOWV/Nm/y12NhmzC:TImaLvW5Vaqxekog0ZUyYkC
Threatray 8'488 similar samples on MalwareBazaar
TLSH T19F35BF9C3650B9DFCEDBCD7AC9AD6CB49A2166674307D203900315AEAD1E69BDF001E3
dhash icon 1834b436f2f0f0c2 (10 x AgentTesla, 7 x Formbook, 5 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
405
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Proforma invoiceShipping documents.exe
Verdict:
Malicious activity
Analysis date:
2021-08-26 23:18:06 UTC
Tags:
trojan formbook stealer opendir
Link:
https://app.any.run/tasks/4419a052-6830-4660-a3ff-cf68aca06783

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/182777/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Deleting a recently created file
Unauthorized injection to a recently created process
Launching a process
Creating a process with a hidden window
Creating a file
Launching cmd.exe command interpreter
Creating a window
Sending a custom TCP request
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/067f35fa-e103-4f2a-9010-60ea1c0f15d6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/840126
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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)
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 dnsIp2 2 Behavior Graph ID: 472557 Sample: Proforma invoiceShipping do... Startdate: 27/08/2021 Architecture: WINDOWS Score: 100 41 www.xn--pckxbp6bzgv915dgbf.website 2->41 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 12 other signatures 2->55 11 Proforma invoiceShipping documents.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\enizmyur.exe, PE32 11->33 dropped 35 C:\Users\...\enizmyur.exe:Zone.Identifier, ASCII 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmpB0D3.tmp, XML 11->37 dropped 39 Proforma invoiceSh...g documents.exe.log, ASCII 11->39 dropped 65 Injects a PE file into a foreign processes 11->65 15 Proforma invoiceShipping documents.exe 11->15         started        18 schtasks.exe 1 11->18         started        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 43 www.stop-masquerade.com 217.160.0.230, 49741, 80 ONEANDONE-ASBrauerstrasse48DE Germany 20->43 45 www.peamon.net 118.27.99.91, 49744, 80 INTERQGMOInternetIncJP Japan 20->45 47 5 other IPs or domains 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 26 explorer.exe 20->26         started        signatures11 process12 signatures13 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:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c71e73a5006f03bf63ad6099f034a3d19a130a6893979c43318eca2cb6bfd224/
Threat name:
ByteCode-MSIL.Packed.Confuser
Create hunting rule
Status:
Malicious
First seen:
2021-08-26 12:37:41 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=y4phhjian4b36y5nmcm7anfd2gnbgctisolzyqzrr3fcznv72isa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2ab54e46be8e8a1b7e66be9bed5492e2cb5c4112e548442e209954affc2dc374
Formbook
385f5ca91b0a230a14f5d32c79d061a3af0f5533923ad62e1982d1327ed086a4
Formbook
43368f8d0f777c8f0a9fb5dc2ec89f131275873935098ff8a12be41cd2161ecf
Formbook
5b7a858563dfd290658d183a0d1c101e39a9dda3327e84c11ef12bc873cb98b9
Formbook
8b4049ea3937e355ad9a551795afcb621fb56991ffc6f1db746861acfd7d6a46
Formbook
8c84e97b71aa8d34be8742cd4b6c0b86abdfb92379b099465eb751b0882efb23
Formbook
93f0775c5a5512759f85db7b3d1c4b3ee7049369cd0dcd1d4f778626621bfa0c
Formbook
a7c09392aa26962b20d2fc58398b6425ebd062187b2923fbbb7b1866523f1e26
Formbook
+ 8'478 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b6cu loader rat suricata
Link:
https://tria.ge/reports/210826-ap898grj1s/
Behaviour
Creates scheduled task(s)
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.xn--marketingrevolucin-61b.com/b6cu/
Unpacked files
SH256 hash:
68a49f8d55aecf2551c16097b302614bcd617a3d1b565f37cd45a92993d0f065
MD5 hash:
1bfe6840b1414ec3315aa2735431fb71
SHA1 hash:
f6e382e2d534b5edc965d5053b6a4c63488e4c43
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/70580828-0555-4566-a3eb-96741f16181d/
Parent samples :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 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/70580828-0555-4566-a3eb-96741f16181d/
SH256 hash:
2d00b075d973160c0ab7b16034b2a60fa05d69ab3547e3a82d578dccbb174468
MD5 hash:
18c72ce2533ecc3965dff92bb8c4e969
SHA1 hash:
51ae72834b51a0765a61406d2c310bd71ba03656
Link:
https://www.unpac.me/results/70580828-0555-4566-a3eb-96741f16181d/
SH256 hash:
c71e73a5006f03bf63ad6099f034a3d19a130a6893979c43318eca2cb6bfd224
MD5 hash:
199fb0f822a8e86ff1cfb61d9051414a
SHA1 hash:
848fbf31e11e6deab665076c820169a8f0ed730c
Link:
https://www.unpac.me/results/70580828-0555-4566-a3eb-96741f16181d/
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/c71e73a5006f03bf63ad6099f034a3d19a130a6893979c43318eca2cb6bfd224

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 c71e73a5006f03bf63ad6099f034a3d19a130a6893979c43318eca2cb6bfd224

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/182777/

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