MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dc3430242fe7ae5d1d1f7716fdefab05c10867ef7f6c66b2323bc20671a1b206. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dc3430242fe7ae5d1d1f7716fdefab05c10867ef7f6c66b2323bc20671a1b206
SHA3-384 hash: 35748761467b091d343bff9e8dedd13fb4e061ddd02e61cad29856c19df751a224e02f15b7ab91889b1af22fa76928dc
SHA1 hash: 979000c2dde96adbe5460bfed1ab7255cdcf34f2
MD5 hash: bffff64f334a947da09d31a557492d42
humanhash: sink-three-massachusetts-oven
File name:SALARY-RECEIPT.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:618'496 bytes
First seen:2020-10-20 08:33:42 UTC
Last seen:2020-10-26 08:39:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:btY2v2APYRTSXzEEN/mrMcqZpJ9A1GKZHNYPzodvmj:btYJAARTkzEEN/MzqZRA1GUKzod4
Threatray 2'566 similar samples on MalwareBazaar
TLSH F5D4E080D0455B72D66E9BB5203D0C3943736DAA7A35E92C2D9537EA1BF37B20936E03
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: server.blakecorporations.com
Sending IP: 199.250.204.180
From: HUMAN RESOURCES OFFICE <HR-Manager@victim-domain>
Subject: YOUR EMPLOYMENT STATUS
Attachment: SALARY-RECEIPT.zip (contains "SALARY-RECEIPT.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/73360/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/497372
Signature
Binary contains a suspicious time stamp
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)
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 300890 Sample: SALARY-RECEIPT.exe Startdate: 20/10/2020 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 6 other signatures 2->42 10 SALARY-RECEIPT.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\SALARY-RECEIPT.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 SALARY-RECEIPT.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 shops.myshopify.com 23.227.38.64, 49815, 80 CLOUDFLARENETUS Canada 17->30 32 www.yerrpmail.com 17->32 34 3 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 msiexec.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/dc3430242fe7ae5d1d1f7716fdefab05c10867ef7f6c66b2323bc20671a1b206/
Threat name:
ByteCode-MSIL.Trojan.Agentesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 02:54:13 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3q2dajbp46xf2hi7o4lp335laxaqqz7pp5wgnmrshpbam4nbwida._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4e712f5df51bc5970b962b170cfde7a6cd20622ac67164a6f2101655a8a7d7f3
Formbook
718d659864d771ebadf82d8b5461d39c2bd6bd514ea2d2273d2821a23ab28ed0
Formbook
73c2d8d44daa16a7b406b82cd5201483ae40404037e7a543ad91689cbced81ad
Formbook
a6fd278a82dad870444a8d93e3c05accdfaef779460c2f3777d9ef2441620a41
Formbook
bf0ef36b5d399cf85748039c14e2eca9c5838ebf90f27b5a04aefaab214eef1a
Formbook
d4f441c8e41cf4ad4af9097d51214c411b165ab452f5686aa1e71e4073417334
Formbook
d7d1d6057e7e731b75e1ba9579ccfe717334cc7b4f59324af1a0aa179db22e68
Formbook
e3a99ce882e0faa9a119c9a4d7f91368463f38f7cd20ae48528c267ac6a19968
Formbook
eecabbdec29294f055c109660c94db3de0ce9187461ea6f18639cf9c34883e70
Formbook
f264e8bfb72842255656d3aebf39da5daa78192daf8a87950eee3d9034839b4e
Formbook
+ 2'556 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201020-gh912pd5q2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.songversations.com/vcd/
Unpacked files
SH256 hash:
dc3430242fe7ae5d1d1f7716fdefab05c10867ef7f6c66b2323bc20671a1b206
MD5 hash:
bffff64f334a947da09d31a557492d42
SHA1 hash:
979000c2dde96adbe5460bfed1ab7255cdcf34f2
Link:
https://www.unpac.me/results/69725786-14d3-4d79-8dda-a216a9129fab/
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
Link:
https://www.unpac.me/results/69725786-14d3-4d79-8dda-a216a9129fab/
SH256 hash:
00dcb9d20c1c5ea5aa61d74d39682e7932e9017fe989fd5d2ed399f8da60f8fb
MD5 hash:
da51084e2b420ed06072d3c1d7feb32b
SHA1 hash:
7824ac94e961f9217aa76db9c2dee2f0a4844fe3
Link:
https://www.unpac.me/results/69725786-14d3-4d79-8dda-a216a9129fab/
SH256 hash:
8da2a1bc8b14717687b3e03aba0e5113b504c434f1954c1727e8ddcacf6363e5
MD5 hash:
81e9bb86aeb9a3d3fb78264912dde8c8
SHA1 hash:
9caa448ff02f3f7685738c2084aea652dd9a2c9d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/69725786-14d3-4d79-8dda-a216a9129fab/
Parent samples :
d4f441c8e41cf4ad4af9097d51214c411b165ab452f5686aa1e71e4073417334
bf0ef36b5d399cf85748039c14e2eca9c5838ebf90f27b5a04aefaab214eef1a
dc3430242fe7ae5d1d1f7716fdefab05c10867ef7f6c66b2323bc20671a1b206
fbe1aa263041fc0e84ad2f55ccc11f8c23b593ee31e282edc4a784d992213e5d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/dc3430242fe7ae5d1d1f7716fdefab05c10867ef7f6c66b2323bc20671a1b206

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819

File information

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

Malspam

Formbook

zip ca63509f3fa2b86a46574f37e39abab710b2dd55e1ec0b361724b3263336c2d6

Formbook

Executable exe dc3430242fe7ae5d1d1f7716fdefab05c10867ef7f6c66b2323bc20671a1b206

(this sample)

  
Dropped by
MD5 79dfcf5a500d4d8e0e0ac40a0abcb7da
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73360/
  
Dropped by
SHA256 ca63509f3fa2b86a46574f37e39abab710b2dd55e1ec0b361724b3263336c2d6

Comments