MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 498ce67ad88b8121b3062ea25ede6550ea4c3bc4f29fab40cbb4c93c20121fb2. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
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SHA256 hash: 498ce67ad88b8121b3062ea25ede6550ea4c3bc4f29fab40cbb4c93c20121fb2
SHA3-384 hash: 2c021d7f734671144a47452e07eb685395f1512716f1d5aede52ea2e1ef8f3c77cd19bc8022801612ca9898d761c1fe1
SHA1 hash: 504052ec118dde942f6ad17ad61dbfd1d9a56e66
MD5 hash: d74e94a07cb555c9cfd65dd257d74da1
humanhash: oxygen-mirror-three-beryllium
File name:PROPOSAL SPECIFICATIONS AND PROPOSAL LETTER.exe
Download: download sample
Signature Formbook
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File size:1'014'272 bytes
First seen:2021-05-18 19:45:02 UTC
Last seen:2021-05-18 20:05:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:HTWD/WeqXEIftM3WgGay9GmHwFE8kmuk7uVC2zzl:VeUlghy3HwFHV7uVFzzl
Threatray 5'072 similar samples on MalwareBazaar
TLSH DE25BF12B1C141E8E35EBB73839BB9707FA162C794A7E594FC4D0A14C6B3B44DE8468B
Reporter malware_traffic
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
120
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PROPOSAL SPECIFICATIONS AND PROPOSAL LETTER.exe
Verdict:
Suspicious activity
Analysis date:
2021-05-18 05:02:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/17bb55c8-d131-44f7-9625-f9b4888e234f

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/158170/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.747-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/784333
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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: 416725 Sample: PROPOSAL SPECIFICATIONS AND... Startdate: 18/05/2021 Architecture: WINDOWS Score: 100 34 www.getblackops2hack.com 2->34 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 8 other signatures 2->44 11 PROPOSAL SPECIFICATIONS AND PROPOSAL LETTER.exe 3 2->11         started        signatures3 process4 file5 28 PROPOSAL SPECIFICA...OSAL LETTER.exe.log, ASCII 11->28 dropped 14 PROPOSAL SPECIFICATIONS AND PROPOSAL LETTER.exe 11->14         started        process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.konbeca.com 64.190.62.111, 49752, 80 NBS11696US United States 17->30 32 www.alibbv.com 17->32 36 System process connects to network (likely due to code injection or exploit) 17->36 21 rundll32.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/498ce67ad88b8121b3062ea25ede6550ea4c3bc4f29fab40cbb4c93c20121fb2/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2021-05-17 21:30:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jggom6wyroasdmygf2rf5xtfkdveyo6e6kp2wqglwtetyiasd6za._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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418c91165a110d4877cb2932db456e37715dd6ea494712bb6cebd009eb090727
Formbook
5d5d64a87a5d888443e8d7a25046922fa4a39fe5952a45635dd66321e616bb14
Formbook
8ac1fc19367861f3a749d801300f554148e36a0e8a4f4cce3c5d3e4de43e4279
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b35de004189f271fe754dd614e5fbbc299425f5aca9ebf1f935bf26696964853
Formbook
b3c5b3cf581d15fcbacf67b4bdba199bfe7089704875746109b3206eb07b99e2
Formbook
c7b835a38f13c18350ba953a8f57f8c90a237804c377ba32d6fd212daa08e98c
Formbook
d0116b0ea676a655b1d55a2b7a79fb2585c1d04803e9d1d6f9cd1da15f789138
Formbook
d56c4c2f5d2fb1888a61723b99845f21742ab93794bc0fdcf146a67c33919e1f
Formbook
db71ab2abe5d22d0811604314e228cf31658888965a4f79f5fc5616805731f4c
Formbook
df9518a17395e5cd3d467eaf82daec28250b168e6b31553b0a60712f05025380
Formbook
+ 5'062 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210518-fngndxb3bj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.semenovdmitriik.club/bwk/
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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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.

Cape
Cape
https://www.capesandbox.com/analysis/158170/

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