MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91fc998d3030b2771d47e14af94e90585fd5822ea3a3152514da8e63aa6b7e25. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91fc998d3030b2771d47e14af94e90585fd5822ea3a3152514da8e63aa6b7e25
SHA3-384 hash: 4a1bb6f86cf2f2d7809f5f5f8621f3163ee72fa745b98415fea8da5736649ac620e953e34cfe4080cac858c5fa153078
SHA1 hash: 856e57a0f1a9545b823a385cb32132082b34cc79
MD5 hash: 056bd7ee3a3ae9abd1fc6fea782dae07
humanhash: romeo-missouri-black-river
File name:DHL Documents.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:542'720 bytes
First seen:2021-12-15 09:32:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:z2nfmWFRSwtebkTllchBgarcoFqT8e1UvLGx23rxZaA8Db8V0uCouw3RnX6W58y1:z2nbABwokRSLW2TaTDAVhMm2u
Threatray 12'828 similar samples on MalwareBazaar
TLSH T1CBB4AE6D2587D7CDF83AD3B93B61619403E1ACF1E707E0DEFCA5308B84A7A512A72521
Reporter abuse_ch
Tags:DHL exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL Documents.exe
Verdict:
Malicious activity
Analysis date:
2021-12-15 10:33:59 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/d541b5ef-0fcd-49d7-86d1-00d87c279648

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/214259/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b9b65581d232372002f096/reports/980b6d8a-9109-4303-b122-e3874a93e14a/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0af504ac-294a-4af1-a7d5-dad086549263
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/907826
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
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 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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 540318 Sample: DHL Documents.exe Startdate: 15/12/2021 Architecture: WINDOWS Score: 100 29 www.mhtqph.club 2->29 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 9 other signatures 2->53 10 DHL Documents.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\...\DHL Documents.exe.log, ASCII 10->27 dropped 55 Injects a PE file into a foreign processes 10->55 14 DHL Documents.exe 10->14         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 14->57 59 Maps a DLL or memory area into another process 14->59 61 Sample uses process hollowing technique 14->61 63 Queues an APC in another process (thread injection) 14->63 17 help.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 37 Self deletion via cmd delete 17->37 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Tries to detect virtualization through RDTSC time measurements 17->43 23 cmd.exe 1 17->23         started        31 www.bhwzjd.com 168.76.77.21, 49817, 80 ULTRANETSERVICOSEMINTERNETLTDABR South Africa 20->31 33 jssatchell.media 192.0.78.24, 49818, 80 AUTOMATTICUS United States 20->33 35 7 other IPs or domains 20->35 45 System process connects to network (likely due to code injection or exploit) 20->45 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91fc998d3030b2771d47e14af94e90585fd5822ea3a3152514da8e63aa6b7e25/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-15 09:33:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sh6jtdjqgczhohkh4ffpstuqlbp5larouorrkjiu3khghktlpysq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02770b935248ab8dc915413f9d9fc3090749bda9ed3185df7a8c253a76f8253f
Formbook
778b43e9a8b8350b3940a9f59684f454e5a1761eaa38198430af89b968a2ce35
Formbook
7a0cd1587a69eaf31f745c4f39b0bfbbfbf23f1d1b483b1448da6b90fdaf6caa
Formbook
99889ef9126eddb7fee40e181c9832c734f8cef74736e2c577438300b468751c
Formbook
a48338ad920df299184caed650b6105804c67269494766bdb8651f4d288b8a0b
Formbook
b3bc74c1f3673da08a95775af5f39dd116a249d8a7e597fcd8bb56e07ae3bcd2
Formbook
b7f38916ff521e44e651031ee54e631805f13963baaf6ff6e3cc1aa72f1d0a43
Formbook
d78094f3b6eac87e2d4249671bdc4e044afb31e2e78aac8f2db7186c6d5b6db1
Formbook
dae6ba220bb0a34de731b57965753391343bfe96f9f3fa4fea48102d3377ccf7
Formbook
f8d9fbcef6907460baa7c91e53d1a40865901bb50906b5519cba440fdbc65032
Formbook
+ 12'818 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:how6 loader rat suricata
Link:
https://tria.ge/reports/211215-lj1dlsabbr/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
suricata: ET MALWARE FormBook CnC Checkin (GET)
Xloader
Malware Config
C2 Extraction:
http://www.floridanratraining.com/how6/
Unpacked files
SH256 hash:
1fc40766b89855ea63ffaf0f87950c8e2f475e760147315931fc63398e92b5be
MD5 hash:
14d8e65d89362eaf13433c91558d97ce
SHA1 hash:
af2ea108699738bd1e10b88f7b9cd804fe75a3a8
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4bfba706-b3d4-4d19-81d1-578b4f6fbb58/
Parent samples :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 hash:
689694a11555a56faa8cd11e2ca67c7c6e68d512dfeed35da657f1ccf6ed77cc
MD5 hash:
1541fe4b9ff1bca7b08a2636de45e444
SHA1 hash:
ec1a19a640a891aa13d5b8e5d8bcb0b97bbe9274
Link:
https://www.unpac.me/results/4bfba706-b3d4-4d19-81d1-578b4f6fbb58/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/4bfba706-b3d4-4d19-81d1-578b4f6fbb58/
SH256 hash:
91fc998d3030b2771d47e14af94e90585fd5822ea3a3152514da8e63aa6b7e25
MD5 hash:
056bd7ee3a3ae9abd1fc6fea782dae07
SHA1 hash:
856e57a0f1a9545b823a385cb32132082b34cc79
Link:
https://www.unpac.me/results/4bfba706-b3d4-4d19-81d1-578b4f6fbb58/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/91fc998d3030b2771d47e14af94e90585fd5822ea3a3152514da8e63aa6b7e25

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: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 91fc998d3030b2771d47e14af94e90585fd5822ea3a3152514da8e63aa6b7e25

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/214259/

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