MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20a9f82d7c88dc2cdf95a495a071bc1780e31df525d1334137c7cb2fe427a56b. 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 2 File information Comments

SHA256 hash: 20a9f82d7c88dc2cdf95a495a071bc1780e31df525d1334137c7cb2fe427a56b
SHA3-384 hash: 90266bd750d0c3571cf830dfd9025ec4fb1ff543db2136a3013c7109d5dfa64a83c46ea996aa8652fdc792fbc770c873
SHA1 hash: 464fceba0ac7b32b482f7157dd3ead4198e2acc3
MD5 hash: b4edde699d6ff6fe9254184573c0e54d
humanhash: hamper-alabama-august-bluebird
File name:Purchase Order CW286240-A & CW274.exe
Download: download sample
Signature Formbook
File size:851'456 bytes
First seen:2022-09-26 03:19:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:ortd1hrTpn2BnmSFJ+P/Qwr95zHc+5gmKgNjORJ6v8:orrpEmqJobj7HmJ6v
TLSH T14105BE14162DCB06C879A974CCD3E1705BE79DC5426AC23B8ADABCB7F136348E993361
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
packed
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Snort IDS alert for network traffic
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 709666 Sample: Purchase Order CW286240-A &... Startdate: 26/09/2022 Architecture: WINDOWS Score: 100 31 www.metrumherma.xyz 2->31 35 Snort IDS alert for network traffic 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 8 other signatures 2->41 9 Purchase Order CW286240-A & CW274.exe 3 2->9         started        signatures3 process4 file5 23 Purchase Order CW2...0-A & CW274.exe.log, ASCII 9->23 dropped 51 Injects a PE file into a foreign processes 9->51 13 Purchase Order CW286240-A & CW274.exe 9->13         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 13->53 55 Maps a DLL or memory area into another process 13->55 57 Sample uses process hollowing technique 13->57 59 Queues an APC in another process (thread injection) 13->59 16 explorer.exe 13->16 injected process9 dnsIp10 25 www.190bautistaway.com 162.209.66.24, 49715, 49716, 80 RMH-14US United States 16->25 27 www.b-c-s.org 217.160.0.91, 49714, 80 ONEANDONE-ASBrauerstrasse48DE Germany 16->27 29 3 other IPs or domains 16->29 33 System process connects to network (likely due to code injection or exploit) 16->33 20 svchost.exe 13 16->20         started        signatures11 process12 signatures13 43 Tries to steal Mail credentials (via file / registry access) 20->43 45 Tries to harvest and steal browser information (history, passwords, etc) 20->45 47 Deletes itself after installation 20->47 49 2 other signatures 20->49
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-09-23 13:38:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 40 (50.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:etfh rat spyware stealer trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
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
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
5bd873ed54a3ae7e215b774b9be18afff96fabb3c3472c296b79b8eef231e1bc
MD5 hash:
125584878ca93ca25b3311d25cb6696a
SHA1 hash:
cb31cb4c271e24ccae8c56b12b5756bfb606184e
SH256 hash:
b0f2cc6dbd715a0257f13f022b301803d1b8dc8a7b345004217d681a8ed01e3d
MD5 hash:
1947d980f3916a61d13868470080daad
SHA1 hash:
2fbf098b0d43c7a4c8a707fb833d17cd69f36cc3
SH256 hash:
44c50087cbd9a86677ff5b898c1ad52abf5f25297179a174edcc8b81dec967fc
MD5 hash:
d012ba9057bf67c7f29871326f2af919
SHA1 hash:
1d5b8b512b37f0e1900496b578117082929654c7
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
SH256 hash:
20a9f82d7c88dc2cdf95a495a071bc1780e31df525d1334137c7cb2fe427a56b
MD5 hash:
b4edde699d6ff6fe9254184573c0e54d
SHA1 hash:
464fceba0ac7b32b482f7157dd3ead4198e2acc3
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
Rule name:Skystars_Malware_Imphash
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 20a9f82d7c88dc2cdf95a495a071bc1780e31df525d1334137c7cb2fe427a56b

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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