MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77d33d0e8b91781213a971ebc2e6abe4191bf2c28ff0ede19b07db092f590dff. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77d33d0e8b91781213a971ebc2e6abe4191bf2c28ff0ede19b07db092f590dff
SHA3-384 hash: e1c27e9c3b5d174a2a048cb6405ec33d056d505fd86b489943db72a687282981bbf83752d633e2559f223ddff87a056e
SHA1 hash: 4f6b524ab5fa51d9c5465572de8075c857afb686
MD5 hash: d726ec6e056461dd7d3ce8890c3c9a4e
humanhash: uniform-football-failed-skylark
File name:9JzK89dRiaBYTuN.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'263'616 bytes
First seen:2021-08-03 16:01:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'634 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:/0Sfx8DgCfx8DgR8zHf/7jcHuueymkthBrwDZBOmzLLH:r58DgC58Dg+Tzjuuun7HcZBOmPr
Threatray 7'299 similar samples on MalwareBazaar
TLSH T16A45F138734ADF57CA5C887B08D68000E6B59E42B103E7AEBDB032716FE56655B18DEC
dhash icon b271e8e4d4ccf070 (22 x AgentTesla, 14 x Formbook, 11 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9JzK89dRiaBYTuN.exe
Verdict:
Malicious activity
Analysis date:
2021-08-03 16:03:01 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/f50f84f2-3b9a-4138-b540-ec109a0d5e5e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/176124/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Sending a UDP request
Launching a process
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/400dff2b-b15d-45e9-9fca-569619ca22a2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/826325
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Process Start Without DLL
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: 458757 Sample: 9JzK89dRiaBYTuN.exe Startdate: 03/08/2021 Architecture: WINDOWS Score: 100 39 www.panyu-qqbaby.com 2->39 41 panyu-qqbaby.com 2->41 43 2 other IPs or domains 2->43 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 9 other signatures 2->55 11 9JzK89dRiaBYTuN.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\9JzK89dRiaBYTuN.exe.log, ASCII 11->31 dropped 14 RegSvcs.exe 11->14         started        process6 signatures7 63 Modifies the context of a thread in another process (thread injection) 14->63 65 Maps a DLL or memory area into another process 14->65 67 Sample uses process hollowing technique 14->67 69 2 other signatures 14->69 17 explorer.exe 14->17 injected process8 dnsIp9 33 www.regarta.com 74.206.228.78, 49730, 80 WEBAIR-INTERNETUS United States 17->33 35 www.sdmdwang.com 112.213.96.11, 49741, 49747, 80 SUNHK-DATA-AS-APSunNetworkHongKongLimited-HongKong Hong Kong 17->35 37 10 other IPs or domains 17->37 47 System process connects to network (likely due to code injection or exploit) 17->47 21 cmmon32.exe 12 17->21         started        25 autofmt.exe 17->25         started        signatures10 process11 dnsIp12 45 www.sdmdwang.com 21->45 57 Modifies the context of a thread in another process (thread injection) 21->57 59 Maps a DLL or memory area into another process 21->59 61 Tries to detect virtualization through RDTSC time measurements 21->61 27 cmd.exe 1 21->27         started        signatures13 process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/77d33d0e8b91781213a971ebc2e6abe4191bf2c28ff0ede19b07db092f590dff/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-02 01:08:37 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o7jt2dulsf4bee5johv4fzvl4qmrx4wcr7yo3ym3a7nqsl2zbx7q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
06e6b50f2a956f1fff285d4717f7dc33af56f8f08255f744cbd0eba9b0fe82e9
Formbook
2d7aac32ea8a8329262ead70ec2f030c1a4061e4edafdf03e605bb9ce606836e
Formbook
3a4677dc6f14f38983af15458b11d5f92e71dea8d5cd0e5b263c50d211a72621
Formbook
4cf933c9f31b4e3dae8002043c64a401f91a228adeadfbca9b172b3333f1be6b
Formbook
6c60876d91087cbd176ff5419577f2b3315b2d3a9d9c6d11a06b95ea10d5311f
Formbook
e59a1d022c6c4f0cc7d23689004e65ea7f1f940adef98cf891a008dd9d7f66d9
Formbook
ec5f4dcc08f293334a46654b279444c6c128608c6af38a4139a5b28503954219
Formbook
+ 7'289 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat suricata
Link:
https://tria.ge/reports/210803-1mr9f21sz2/
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.panyu-qqbaby.com/weni/
Unpacked files
SH256 hash:
6f54cee217deaf54bd3f9c1a2169f437a7eee29309f87232ce46032eca3b1363
MD5 hash:
550970889e4325645c8671d69bf96a91
SHA1 hash:
35673655771636cd80db6fcc2714bee15d6156b1
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/01d436a6-c200-4b12-a801-ce8ac1e4183e/
Parent samples :
4cf933c9f31b4e3dae8002043c64a401f91a228adeadfbca9b172b3333f1be6b
2d7aac32ea8a8329262ead70ec2f030c1a4061e4edafdf03e605bb9ce606836e
3a4677dc6f14f38983af15458b11d5f92e71dea8d5cd0e5b263c50d211a72621
e59a1d022c6c4f0cc7d23689004e65ea7f1f940adef98cf891a008dd9d7f66d9
06e6b50f2a956f1fff285d4717f7dc33af56f8f08255f744cbd0eba9b0fe82e9
38e4be0b1612a87858ee40b6c9eebd264d02e4488a34c3f1269ca385b01d1b20
ec5f4dcc08f293334a46654b279444c6c128608c6af38a4139a5b28503954219
6c60876d91087cbd176ff5419577f2b3315b2d3a9d9c6d11a06b95ea10d5311f
b07a33b6e6d8007b04f1f4a78cd8be773506bbf6b60ed0227665188d57e82a15
77d33d0e8b91781213a971ebc2e6abe4191bf2c28ff0ede19b07db092f590dff
06d062adc4478b2c95f98fec038fe559eff9fa60ce98d05d257f37c00a9026d6
4ca6a48021d7d442d9311b158691b1f219576d7d37a99f64741463659903ad4c
SH256 hash:
7c69d8dfd16a9841711baacecaa23181a1ff8a351c355080df4fe07338477afc
MD5 hash:
7e9d63a90557a3effb56f7dacc3a54ad
SHA1 hash:
47be3fbcf372e50a647f57d75825b7ca804db42d
Link:
https://www.unpac.me/results/01d436a6-c200-4b12-a801-ce8ac1e4183e/
SH256 hash:
cfef97ff706312dff4edd998aeee22f1283221631ebb0cc954bebbb701c1465c
MD5 hash:
a0f625a3d3348903f3c902f588c0e4f5
SHA1 hash:
20d1f0b74abe6f500e8c21119f55281926210ac0
Link:
https://www.unpac.me/results/01d436a6-c200-4b12-a801-ce8ac1e4183e/
SH256 hash:
77d33d0e8b91781213a971ebc2e6abe4191bf2c28ff0ede19b07db092f590dff
MD5 hash:
d726ec6e056461dd7d3ce8890c3c9a4e
SHA1 hash:
4f6b524ab5fa51d9c5465572de8075c857afb686
Link:
https://www.unpac.me/results/01d436a6-c200-4b12-a801-ce8ac1e4183e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/77d33d0e8b91781213a971ebc2e6abe4191bf2c28ff0ede19b07db092f590dff

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:quakbot_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:silentbuilder_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
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 77d33d0e8b91781213a971ebc2e6abe4191bf2c28ff0ede19b07db092f590dff

(this sample)

  
Dropped by
null
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/176124/

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