MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a4a387983341342182c18e3f269ba519bb44f457733f739b90d4e4567d51d02. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a4a387983341342182c18e3f269ba519bb44f457733f739b90d4e4567d51d02
SHA3-384 hash: 13aab87bec4f762fc83a23a9aef839d6e1c9ecef899ad7c601277f851a35f41e720d08964156fd7b1bfcc5edc1524699
SHA1 hash: 9087878b664a8a0a7f685d2aaf7e10ad6740db18
MD5 hash: 5787bb6fda3b610019a982184fa39311
humanhash: oregon-salami-pip-batman
File name:Quotation.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:523'264 bytes
First seen:2020-08-19 10:11:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:SRGyHZP8lwJRFftubgQ7cKMWxx20nzxJsQIml:WFP8lafEbgUcix40jfl
Threatray 2'307 similar samples on MalwareBazaar
TLSH 55B4E0333794DB15D2BB4336CC99504503F9B8076A12DF7EBDC8224C4A52B9A5B32ADB
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: accrescent.com.pk
Sending IP: 63.141.252.251
From: kamran.anwar@accrescent.com.pk
Subject: 回覆: Invitation to Quote - Accrescent Procurement (Media Files) Order Request
Attachment: Accrescent Procurement Media Files Order Request.img (contains "Quotation.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48368/
Detection(s):
SecuriteInfo.com.Trojan.Inject3.51970.16865.21028.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/437387
Signature
.NET source code contains potential unpacker
Detected unpacking (changes PE section rights)
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 271178 Sample: Quotation.exe Startdate: 19/08/2020 Architecture: WINDOWS Score: 100 32 www.vnvyy.info 2->32 34 www.mage-cart.info 2->34 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Yara detected AntiVM_3 2->42 44 4 other signatures 2->44 9 Quotation.exe 3 2->9         started        signatures3 process4 signatures5 54 Detected unpacking (changes PE section rights) 9->54 56 Tries to detect virtualization through RDTSC time measurements 9->56 58 Injects a PE file into a foreign processes 9->58 12 Quotation.exe 9->12         started        15 Quotation.exe 9->15         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 12->60 62 Maps a DLL or memory area into another process 12->62 64 Sample uses process hollowing technique 12->64 66 Queues an APC in another process (thread injection) 12->66 17 explorer.exe 12->17 injected process8 dnsIp9 26 aeshse.com 162.241.253.222, 49744, 49745, 80 UNIFIEDLAYER-AS-1US United States 17->26 28 dapukustore.com 23.236.59.108, 49746, 49747, 80 GOOGLEUS United States 17->28 30 21 other IPs or domains 17->30 36 System process connects to network (likely due to code injection or exploit) 17->36 21 chkdsk.exe 12 17->21         started        24 autoconv.exe 17->24         started        signatures10 process11 signatures12 46 Tries to steal Mail credentials (via file access) 21->46 48 Tries to harvest and steal browser information (history, passwords, etc) 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 2 other signatures 21->52
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4a4a387983341342182c18e3f269ba519bb44f457733f739b90d4e4567d51d02/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 10:13:09 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jjfdq6mdgqjuegbmddr7e2n2kgn3it2fo4z7oonzbvhekz6vduba._file
Verdict:
malicious
Label(s):
trickbot
Create hunting rule
Similar samples:
0f73e9d58b85ae9061722f0720ab2f76f9884042b9ac260e5c102564d4572004
Formbook
353bbb86f2947091a4cd8c6e556570654b68b344cd73a3f22409c4b60106ab9c
Formbook
3d7664dcebcb7d20b25a6890a6697a2a293239ea13f00695722d1dce023c8cb6
Formbook
4e343d50670d902ec99b2a4079f088249c3b6101d9754f763a77566af82e6f59
Formbook
5422893799866f5a8f2137ae3261caf86479e948715935a096800888f1a5ae88
Formbook
b32579e01c28fc0a157f14ce8c679d02fcd1f5c03f8eef56ba6a77a627786d84
Formbook
c12ceb5bc795285eff54b3ef08c9208c67148b5c446e21084677c25bf8c56112
Formbook
c940837494435b53d54b6b4349031a14bf5db905a22b7601e34deb851b109715
Formbook
e86665f5f4cb843757815bce9f8311678c1bc32cdc6537ccc3aedc4502dca4a8
Formbook
f72897f4747769b169b5969fcde3b1b7ec92b79e0fb2e67a9d72650ac14c8d56
Formbook
+ 2'297 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/200819-rdb4mbgbk2/
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
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mage-cart.info/ivd8/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Malspam

Formbook

img 231a605a7021fb1599055c2bab1ada648f8b265db37c4222806df9fb113e1dc2

Formbook

Executable exe 4a4a387983341342182c18e3f269ba519bb44f457733f739b90d4e4567d51d02

(this sample)

  
Dropped by
MD5 92e25f21c15bf458c2e9da0e84198abd
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48368/
  
Dropped by
SHA256 231a605a7021fb1599055c2bab1ada648f8b265db37c4222806df9fb113e1dc2

Comments