MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a545d90b499264c401c3afad3e926547f86349dfc12b9c50700afc0590cfc53. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6a545d90b499264c401c3afad3e926547f86349dfc12b9c50700afc0590cfc53
SHA3-384 hash: e1f2a3355bacdee0be1bb1f9b301daa1b8b1194c7a10acfd6e5dd7d2fe35c25ac236063e5dddf46a98081b26f6827a37
SHA1 hash: 92e9c881fc6487f3533c873b08099b82c5ad51ab
MD5 hash: 839506b9d3655b1259a95797348748ab
humanhash: purple-steak-seven-montana
File name:Purchase Order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:374'784 bytes
First seen:2021-10-04 13:31:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:kt2rERQ+3HwOR3fQHqfY4D5jgL24waD4pd26J8vKRNvHe0f9fqrHTG/fp0:vESoR3kTq58LBwTuvKRNv+0Fi7TG6
Threatray 9'863 similar samples on MalwareBazaar
TLSH T1C484F16933A7A708DC38C7F52824A29127B66426150EC7BC9EDCD0FD7E23B7459E4A03
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2021-10-04 13:36:45 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/abbf87d4-020f-494a-a094-6ccfb4b355e6

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/194651/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.935-1.UNOFFICIAL
Create hunting rule

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/615c0ff398a6280f39324d72/reports/c2d68b5b-12c1-401c-a5aa-23f56a1b681c/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a2aebc35-7362-4ead-9382-49989580288e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/864035
Signature
.NET source code contains potential unpacker
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
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 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 (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 netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 496461 Sample: Purchase Order.exe Startdate: 04/10/2021 Architecture: WINDOWS Score: 100 34 www.recessmotor.com 2->34 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 9 other signatures 2->48 11 Purchase Order.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\user\...\Purchase Order.exe.log, ASCII 11->32 dropped 14 Purchase Order.exe 11->14         started        17 Purchase Order.exe 11->17         started        19 Purchase Order.exe 11->19         started        process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 21 explorer.exe 14->21 injected process8 dnsIp9 36 www.decco-group.com 185.151.30.176, 49846, 80 TWENTYIGB United Kingdom 21->36 38 archerbetsy.top 162.251.85.174, 49815, 80 PUBLIC-DOMAIN-REGISTRYUS United States 21->38 40 10 other IPs or domains 21->40 50 System process connects to network (likely due to code injection or exploit) 21->50 52 Uses netsh to modify the Windows network and firewall settings 21->52 25 netsh.exe 21->25         started        signatures10 process11 signatures12 54 Self deletion via cmd delete 25->54 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6a545d90b499264c401c3afad3e926547f86349dfc12b9c50700afc0590cfc53/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-04 06:49:07 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=njkf3efuteteyqa4hl5nh2jgkr7ymne57qjltrihacx4awim7rjq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
129d230573fdb00a681a7f0c507bc16d2efcd08c4408f544f1d7653162b2cd92
Formbook
3f5c235293cfdde26a725b19b3cbaefc44dae026b7dff9124002f42e564df18b
Formbook
672ca84f8680ab545196dd1f961b3f456ae6b4ff1e0629fab96ed0625f22bbd1
Formbook
80b056a8c2fee08fd3361a8a271dea407425ca335275d49f81a1c50a06d9ed98
Formbook
aba852eff9b53848b266228241991403993f7769587712794eb5f406ce4c9a6c
Formbook
ae55ee08f18b57a38a47ed9bc161b7833e35c31b014e8579ae904a2d4d7c63e3
Formbook
c10f872ac7d56c5c8d5151eb8d5c3aba275f83bd55700c0dc38776a04b275175
Formbook
dae6ba220bb0a34de731b57965753391343bfe96f9f3fa4fea48102d3377ccf7
Formbook
ea12191fcd49d36b68be2c466a24cac87cfd79f9d1fb18ef252037f0fb976979
Formbook
f836093baf3255830126881722dc2edd86fd615fc922f86d177b0ccb0e3d2941
Formbook
+ 9'853 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:sz40 loader rat suricata
Link:
https://tria.ge/reports/211004-qszkwsgdgn/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.recessmotor.com/sz40/
Unpacked files
SH256 hash:
c8566655759bee0d4aa3a139ba527576546efb78fabf4151c40aff58aa5b6bb6
MD5 hash:
8167bf30a39e2c23b1b0a6817a772e04
SHA1 hash:
d7db6bb2f8b00f2935e683875a79eccc6f5537dd
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/67e2ec18-0e5d-4af3-a95d-c93a395c221d/
SH256 hash:
03b66d23bcc3c60e31cd9b779496203b5f21f1aa7493fddc8cfd70c0c2c54920
MD5 hash:
9e38a902d223960a8c84c3f53d1f917c
SHA1 hash:
7b6b36b13eb6527a11dccf8bbcc594ba0331ab60
Link:
https://www.unpac.me/results/67e2ec18-0e5d-4af3-a95d-c93a395c221d/
SH256 hash:
fe8637d821a39a8b74abce7e043007d38cb9c5cfcb7098af9846cfd98185ac03
MD5 hash:
c380b6831f456ac5cac08c78c0e4dada
SHA1 hash:
3e241a0b9d96c1dfbadd7ee1a8c5ee6d74eba11c
Link:
https://www.unpac.me/results/67e2ec18-0e5d-4af3-a95d-c93a395c221d/
SH256 hash:
6a545d90b499264c401c3afad3e926547f86349dfc12b9c50700afc0590cfc53
MD5 hash:
839506b9d3655b1259a95797348748ab
SHA1 hash:
92e9c881fc6487f3533c873b08099b82c5ad51ab
Link:
https://www.unpac.me/results/67e2ec18-0e5d-4af3-a95d-c93a395c221d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/6a545d90b499264c401c3afad3e926547f86349dfc12b9c50700afc0590cfc53

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 6a545d90b499264c401c3afad3e926547f86349dfc12b9c50700afc0590cfc53

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/194651/

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