MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 925deb5877678c86982935fc51bf09f33b7948d0a836a0fce39d9307d94c0d7e. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 925deb5877678c86982935fc51bf09f33b7948d0a836a0fce39d9307d94c0d7e
SHA3-384 hash: c7c20c57d817fa033b5885372745c151698e71eb5d6a7ed5ed5a387da25af06ae352ee26139bc8b9270a72821f2f8cf9
SHA1 hash: 783ef039a9b3c436ef994e49ba40add44e1469d3
MD5 hash: 1bacb7aeb844860a8e992df0057b0e8b
humanhash: iowa-juliet-blue-aspen
File name:RfFSJAGELaFJHOC.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:568'832 bytes
First seen:2021-05-19 14:13:40 UTC
Last seen:2021-05-19 18:16:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:reyKs/2scpFPPj/vmLa4Blm5kyqWpkuriiRDSDi3VwTg1b5CKz:l5/PGv14KqWiulS8Vh9bz
Threatray 5'202 similar samples on MalwareBazaar
TLSH 7EC4F1243B9AEB6AEABE4B7D5532424003F5F6669723D74C7E8850ED0D22785C366333
Reporter GovCERT_CH
Tags:FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RfFSJAGELaFJHOC.exe
Verdict:
Malicious activity
Analysis date:
2021-05-19 14:19:21 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/f26f8a57-78ba-43e7-9ebf-ee9fdd782842

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/158647/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.747-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/785026
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 417424 Sample: RfFSJAGELaFJHOC.exe Startdate: 19/05/2021 Architecture: WINDOWS Score: 100 38 www.odislewis.com 2->38 40 www.dreamlikeliving.com 2->40 42 3 other IPs or domains 2->42 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 8 other signatures 2->58 11 RfFSJAGELaFJHOC.exe 3 2->11         started        signatures3 process4 file5 36 C:\Users\user\...\RfFSJAGELaFJHOC.exe.log, ASCII 11->36 dropped 72 Writes to foreign memory regions 11->72 74 Allocates memory in foreign processes 11->74 76 Injects a PE file into a foreign processes 11->76 15 RegSvcs.exe 11->15         started        18 RegSvcs.exe 11->18         started        20 RegSvcs.exe 11->20         started        signatures6 process7 signatures8 78 Modifies the context of a thread in another process (thread injection) 15->78 80 Maps a DLL or memory area into another process 15->80 82 Sample uses process hollowing technique 15->82 84 Queues an APC in another process (thread injection) 15->84 22 explorer.exe 15->22 injected 86 Tries to detect virtualization through RDTSC time measurements 18->86 process9 dnsIp10 44 www.yogamays.com 154.207.35.80, 49769, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 22->44 46 bogolacke.com 160.153.132.205, 49764, 80 GODADDY-AMSDE United States 22->46 48 11 other IPs or domains 22->48 60 System process connects to network (likely due to code injection or exploit) 22->60 62 Performs DNS queries to domains with low reputation 22->62 26 svchost.exe 12 22->26         started        30 autochk.exe 22->30         started        signatures11 process12 dnsIp13 50 www.pcbet999.com 26->50 64 System process connects to network (likely due to code injection or exploit) 26->64 66 Modifies the context of a thread in another process (thread injection) 26->66 68 Maps a DLL or memory area into another process 26->68 70 Tries to detect virtualization through RDTSC time measurements 26->70 32 cmd.exe 1 26->32         started        signatures14 process15 process16 34 conhost.exe 32->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/925deb5877678c86982935fc51bf09f33b7948d0a836a0fce39d9307d94c0d7e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-19 08:57:11 UTC
AV detection:
9 of 46 (19.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sjo6wwdxm6gingbjgx6fdpyj6m5xssgqva3kb7hdtwjqpwkmbv7a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03cd38ce63530aff9a8797f637a1d821b155502537dc0f149121ec5548548a03
Formbook
159415d33340dcf205d3d030f0d32cac913660bd456810d199de5f9cd8732705
Formbook
3d376406d5d05f3f353447e17a2f5adab37ea85d72a3a7cefb33549c2a17c19f
Formbook
4e88cecc4da06f862d6945405ff9aa22b5022ea86bab478b2745f4290f32fd42
Formbook
7f0511e940e8caa44c759e4696bf6b6b7f1389a2290b25c5e3f491270c63daab
Formbook
a3af8681c8cd48f98c8bf2666e12d285963d2375ea4982e975144fee69806f82
Formbook
a42564801d666f9a210723ee247df72d71d93274e7556920957d5a98b237ab2c
Formbook
be797a9728d2139d4ea71acf7f60816eefc2cb5ec16ce3a366a78f67554d63be
Formbook
c6dc1249df7044073cb96ca04207fdc6d621c4a2a434a7df2b8c6f4420581f7f
Formbook
ceb5bc15744e2012960f919d742b4f9463bbae1faf31fcb5a97b5b865a4fb8d7
Formbook
+ 5'192 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210519-w9aywbmjdn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.hysjs168.com/uv34/
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/925deb5877678c86982935fc51bf09f33b7948d0a836a0fce39d9307d94c0d7e

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:hancitor_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
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 925deb5877678c86982935fc51bf09f33b7948d0a836a0fce39d9307d94c0d7e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/158647/

Comments