MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91b614fe4c7a4fa0161cc691a8397743dfece369304fa73942a3c544992b107a. 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
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SHA256 hash: 91b614fe4c7a4fa0161cc691a8397743dfece369304fa73942a3c544992b107a
SHA3-384 hash: 0edf1bcd5a0d658495106c6b33332da9a4cc01ba6dedffa9bf5648140438d2ca2aac0f83069f2d39b942be349a7184e7
SHA1 hash: 14e8b4f592d02c95704e390a8888daad55e30938
MD5 hash: 9dbfc8f022e8442dcf50a171411b19ae
humanhash: berlin-wisconsin-hamper-red
File name:SecuriteInfo.com.W32.AIDetectNet.01.10228.5855
Download: download sample
Signature Formbook
Create hunting rule
File size:589'824 bytes
First seen:2022-06-01 17:33:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:uG9dMteAZfxm6srkUX7l6pxGG7YLrqbu89oROPsan864KGe:uG9dMteCm6sr9XhAB7/y8uUJH
TLSH T12DC4AF2136AC2F16E6BAE73581518000A3F5F41FFB36E69E7EA604CD1864F458372B67
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
363
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.W32.AIDetectNet.01.10228.5855
Verdict:
Malicious activity
Analysis date:
2022-06-01 17:37:50 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/ff1a0f21-d439-44bd-88a7-9ca7ad58166c

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/276152/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.10228.5855.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a system process
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/0f74785c-d240-4566-9870-20d2ee2e35f8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1005257
Signature
Antivirus detection for URL or domain
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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: 637753 Sample: SecuriteInfo.com.W32.AIDete... Startdate: 01/06/2022 Architecture: WINDOWS Score: 100 33 www.3fpq0yl8mznml9lmd.zone 2->33 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 7 other signatures 2->45 11 SecuriteInfo.com.W32.AIDetectNet.01.10228.exe 3 2->11         started        signatures3 process4 file5 31 SecuriteInfo.com.W...et.01.10228.exe.log, ASCII 11->31 dropped 55 Writes to foreign memory regions 11->55 57 Injects a PE file into a foreign processes 11->57 15 RegSvcs.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 2 other signatures 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.turkiyetirpazari.com 18->35 37 turkiyetirpazari.com 34.102.136.180, 49854, 80 GOOGLEUS United States 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 cmstp.exe 18->22         started        25 autochk.exe 18->25         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/91b614fe4c7a4fa0161cc691a8397743dfece369304fa73942a3c544992b107a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-01 17:34:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sg3bj7smpjh2afq4y2i2qolxipp6zy3jgbh2ookcupcujgjlcb5a._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a11e rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220601-v5ehpsedbl/
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
30b29c25703618d59824bd26663a8c95766c5cf5b34ad7487d3b4c30df6ea15e
MD5 hash:
bb1b1c6e0face3071fce89c63f6e586a
SHA1 hash:
2bdc29c4c5a4aa9eb4590a71a81f5f1d52207a8c
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8e0fdd41-64af-4bbc-a2c0-0c30335920d6/
Parent samples :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 hash:
e425cf877e6093efb85e92d2d726ca862a07dc37863339ce35de99870d11a7c5
MD5 hash:
5923b1085d296330087168d007e2dd28
SHA1 hash:
dbdb85b324a2e677e482ed8c064f613b05255c3c
Link:
https://www.unpac.me/results/8e0fdd41-64af-4bbc-a2c0-0c30335920d6/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/8e0fdd41-64af-4bbc-a2c0-0c30335920d6/
SH256 hash:
91b614fe4c7a4fa0161cc691a8397743dfece369304fa73942a3c544992b107a
MD5 hash:
9dbfc8f022e8442dcf50a171411b19ae
SHA1 hash:
14e8b4f592d02c95704e390a8888daad55e30938
Link:
https://www.unpac.me/results/8e0fdd41-64af-4bbc-a2c0-0c30335920d6/
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/91b614fe4c7a4fa0161cc691a8397743dfece369304fa73942a3c544992b107a

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/276152/

Comments