MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c61d5fa6c2a4f421767a7c793da96a0e8e88d482e078ef994f0a50bac73464f0. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c61d5fa6c2a4f421767a7c793da96a0e8e88d482e078ef994f0a50bac73464f0
SHA3-384 hash: bd2df07e7cc7207bbc455893b7b59d22c436c2262fb45978312503cd7137a467e4aae775f65f887ea07a9db53bbffc8c
SHA1 hash: 637d72171ca7500c712fb19b20a26b93fbc7d22a
MD5 hash: 9eb463d604de2a45f75435573998efd3
humanhash: monkey-wolfram-sad-six
File name:Swift0125466.Scan.pdf..exe
Download: download sample
Signature Formbook
Create hunting rule
File size:710'656 bytes
First seen:2020-10-09 06:33:19 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:BXzbTj7wDs+ceehU+M22kpGoP5OqXbzckUEnqHhMv5NO2Un4Z5bO8vJY3jE:BXzbTvwD7huHM22boP53XbIoWhI5NOBr
Threatray 2'378 similar samples on MalwareBazaar
TLSH 3AE4D02273D86F95E13E637985201150A3F1F92BD732E39E7DA940EE09A1F84D763B12
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: tonyhai
Sending IP: 117.121.213.248
From: Moscosso Roberto <euroistru@gmail.com>
Subject: RE:RE:RE:Swift
Attachment: Swift0125466.Scan.pdf.rar (contains "Swift0125466.Scan.pdf..exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69450/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Launching cmd.exe command interpreter
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/486391
Signature
Initial sample is a PE file and has a suspicious name
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
Uses netstat to query active network connections and open ports
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 295655 Sample: Swift0125466.Scan.pdf..exe Startdate: 09/10/2020 Architecture: WINDOWS Score: 100 33 www.ysch5.com 2->33 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected AntiVM_3 2->45 47 6 other signatures 2->47 11 Swift0125466.Scan.pdf..exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\...\Swift0125466.Scan.pdf..exe.log, ASCII 11->31 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 Swift0125466.Scan.pdf..exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.satnhomtuandung.com 115.84.183.223, 49772, 80 VTDC-AS-VNVietel-CHTCompamyLtdVN Viet Nam 18->35 37 omidtebbi.com 50.97.186.164, 49773, 80 SOFTLAYERUS United States 18->37 39 4 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 NETSTAT.EXE 18->22         started        25 autochk.exe 18->25         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c61d5fa6c2a4f421767a7c793da96a0e8e88d482e078ef994f0a50bac73464f0/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2020-10-09 02:48:20 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yyov7jwcut2cc5t2pr4t3klkb2hirvec4b4o7gkpbjilvrzumtya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
07528f3c583c546d2b444b091c3ede380c6427ed0691b95294c7e32dd35560ab
Formbook
4ba0d07d32c048141100317f95bd6dd8b791ba9c6608730b8408530490a13922
Formbook
80a9f4ef9f226558954221ab49e2df9557a030d87946368bfb51e7440bd58d8b
Formbook
816581131b3f726da0cfef239111730e74f04e9015df6a519b92a7e0d6e2cd6a
Formbook
9f335bab72c02acf039bc0366145e832630347a1d141dd1ae768637e52a1a7ce
Formbook
a6fd278a82dad870444a8d93e3c05accdfaef779460c2f3777d9ef2441620a41
Formbook
ad5f1470fa21e384ec2d051aa602a8bf7c7f0cfb6c2926f7a55c5ad7038e9d07
Formbook
d4014ac2689b47f11708425cad3d8aa02dd05ee6d6745006156dffbe0a27b4be
Formbook
da111408d9dccb99b2c429d535ca55f6e970d911da4c24553e75d02fe9c00489
Formbook
fc0d990ef758b78feb650b93c761b3f0fe5daa30d1fbcc77a424eac49ca8cc4d
Formbook
+ 2'368 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/201009-v4pplbdmwx/
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.darkatnightgame.com/fgn/
Unpacked files
SH256 hash:
13b24d3a09d099dabe41cd6cd71607a77e14640b1e9b4ed2d60f6c012f191c43
MD5 hash:
109cedae3c384a1913107f1efad2b7c8
SHA1 hash:
1f7f35b0ed85fa12bb839cbce698e59a30813420
Link:
https://www.unpac.me/results/be1a8601-811e-440f-8431-81a4cdc5d220/
SH256 hash:
d49bc0d8352510d9ce46e2c9106a4c05c0bbb6514456436b6af55c208d98b2da
MD5 hash:
8a5fcc88326ecacbf167933ec7d712b0
SHA1 hash:
58b201c4dace6eabc6e9c4956118813189c61fcd
Link:
https://www.unpac.me/results/be1a8601-811e-440f-8431-81a4cdc5d220/
SH256 hash:
6a15b299e8ebfe04a000f251e22222fce6ccbdf7dd8e943b28d3ee17e617c4eb
MD5 hash:
07fe7426e613eb25e8eff1f20c83ac74
SHA1 hash:
a8980c1e4c4c02734d0f337b44667aab5f50c8ce
Link:
https://www.unpac.me/results/be1a8601-811e-440f-8431-81a4cdc5d220/
SH256 hash:
ea40b4c489ae8a15845588abdfc86ac773e0fd414f8776a47c247a075d14ee04
MD5 hash:
ede37755372a928134c272aaff0d5773
SHA1 hash:
bb20b39a34e4a4d63d31c39cc158f0c9b1fdf5eb
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/be1a8601-811e-440f-8431-81a4cdc5d220/
Parent samples :
f9b5791e5556abf20bf540734de904ea4a0508005071f43531a1347f7fdcce08
fc0d990ef758b78feb650b93c761b3f0fe5daa30d1fbcc77a424eac49ca8cc4d
c61d5fa6c2a4f421767a7c793da96a0e8e88d482e078ef994f0a50bac73464f0
ab8c3b31b7abfcd76554ac8640d5781860ba99d878fb128ed313c64eeef6e39d
4ffeba70e305d0d745d9a60fb8a78cc3f161c3fe4a7373c2303be8f095426abd
cc0807a29f920ca94099399975ae3d52b741d6f1387ea3fb26c44b1bc22cd95c
aa7140aa9e404fcab5e45ba552de89669da4446c6a3474f307def1a75a3d37e0
SH256 hash:
c61d5fa6c2a4f421767a7c793da96a0e8e88d482e078ef994f0a50bac73464f0
MD5 hash:
9eb463d604de2a45f75435573998efd3
SHA1 hash:
637d72171ca7500c712fb19b20a26b93fbc7d22a
Link:
https://www.unpac.me/results/be1a8601-811e-440f-8431-81a4cdc5d220/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c61d5fa6c2a4f421767a7c793da96a0e8e88d482e078ef994f0a50bac73464f0

File information

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

Malspam

Formbook

rar 5419c9eab428612279f990377a7e6aa3266644773b455c509691b430db1b8d9c

Formbook

Executable exe c61d5fa6c2a4f421767a7c793da96a0e8e88d482e078ef994f0a50bac73464f0

(this sample)

  
Dropped by
MD5 a0521b01f914dea91474c45d23af0f3d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/69450/
  
Dropped by
SHA256 5419c9eab428612279f990377a7e6aa3266644773b455c509691b430db1b8d9c

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