MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99cc56c49ea22eaf929c14180a5625096c6652ae122fb35d913ae774604965f0. 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: 99cc56c49ea22eaf929c14180a5625096c6652ae122fb35d913ae774604965f0
SHA3-384 hash: 29076301bf5ffb6a2435ee5a9d4a5a9963d24f76e95e7b91b229f57089be3dc1ba0214a38896391215db7a871ac9d89e
SHA1 hash: bd76252292b9ff822c2a5a7065354c0066fdbe10
MD5 hash: 2d839f7528e8cfaeef3e381a1c9db15a
humanhash: lion-king-charlie-mars
File name:Quotation DOC-Q372983292920.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'050'112 bytes
First seen:2020-10-19 07:27:53 UTC
Last seen:2020-10-19 09:08:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:G8B5WNzlxwGqyVhuACbpu0A/smpOI8r9A1GKZHNYPzodGU8Tv:GBhuB0/xpARA1GUKzodG
Threatray 2'528 similar samples on MalwareBazaar
TLSH 7C25E441E2A4CA04E47A5BBD5224FC31A777FE7BE429D20C7C8D39DA5B72B4105D2A13
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: uzlinshpl01.uzcloud.uz
Sending IP: 185.74.4.8
From: Saheed Ratesh <zahoor.haq1@gmail.com>
Subject: RFQ: Sample Quote
Attachment: Quotation DOC-Q372983292920.pptx.gz (contains "Quotation DOC-Q372983292920.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Trojan.InjectNET.14.26330.639.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/495019
Signature
.NET source code contains potential unpacker
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299989 Sample: Quotation DOC-Q372983292920.exe Startdate: 19/10/2020 Architecture: WINDOWS Score: 100 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 Multi AV Scanner detection for submitted file 2->42 44 9 other signatures 2->44 10 Quotation DOC-Q372983292920.exe 3 2->10         started        process3 file4 30 C:\...\Quotation DOC-Q372983292920.exe.log, ASCII 10->30 dropped 54 Injects a PE file into a foreign processes 10->54 14 Quotation DOC-Q372983292920.exe 10->14         started        17 Quotation DOC-Q372983292920.exe 10->17         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 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.schoolrepetit.site 81.177.139.161, 49753, 80 RTCOMM-ASRU Russian Federation 19->32 34 nosainteriors.com 34.102.136.180, 49738, 80 GOOGLEUS United States 19->34 36 3 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 mstsc.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99cc56c49ea22eaf929c14180a5625096c6652ae122fb35d913ae774604965f0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-19 01:45:25 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=thgfnre6uixk7eu4cqmauvrfbfwgmuvocix3gxmrhltxiycjmxya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4636055b5170ddb11d94a466c0c93e57ad40caf68a036274bdf2ded620a22bce
Formbook
680e6e46c8bed6c48e63f6dab3409bb9cd05f6642084ef8b0d03898dacc500a7
Formbook
6bb732e1c22295b2fa6970a286225d14bd7c6fabef714f9b20c3a622bb8e7645
Formbook
767fc756f86db0b4de57b4ec14964f24af0e47eb23ba7fa1df6378bcf9986947
Formbook
805a071c8e38fca4e3602881ff33ac7a2afba65bb61cd7adda873950bf2779cb
Formbook
9abd8b37403ea5e7b381e0644acc6655dc01efc4be1edf69992c5a68c33eff1f
Formbook
b8e4dfdddae3c40ef710797605631573fe5689ae296637a411a88f8f3c1d7389
Formbook
bdad93534a202f7d3c2f102dc39093fa12a32f5de82c76a5fb41a94e1748d99e
Formbook
d325c45529e7211242f65cabe3549dd635a23fc43b48c2b2a64ccff8d54c1ee2
Formbook
eacd132f69b64ef7a47c959fd92f50343be23e5768f0476c665870f5de4f89ee
Formbook
+ 2'518 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
evasion rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201019-98kfcpg8re/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.stocksmusic.com/svh9/
Unpacked files
SH256 hash:
99cc56c49ea22eaf929c14180a5625096c6652ae122fb35d913ae774604965f0
MD5 hash:
2d839f7528e8cfaeef3e381a1c9db15a
SHA1 hash:
bd76252292b9ff822c2a5a7065354c0066fdbe10
Link:
https://www.unpac.me/results/6be98589-31b2-475b-90a6-98fed71ae07d/
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
Link:
https://www.unpac.me/results/6be98589-31b2-475b-90a6-98fed71ae07d/
SH256 hash:
ccf51e8dd12ad9004faa87fa872794efe5a20ea6a4b2b69536637f317621a568
MD5 hash:
b741346f83b3e988ea50c89295310379
SHA1 hash:
f9b3d4bbcfcb5088aadaf7f412bc99ac8e03771f
Link:
https://www.unpac.me/results/6be98589-31b2-475b-90a6-98fed71ae07d/
SH256 hash:
6f94293ee4fd232ab9a718524dafc6068c8e143682998d2c5b819f4781755c44
MD5 hash:
b8952fb67027e5ed046bb67b33bb5101
SHA1 hash:
36d4732fbbb20f6421c8abc627ed55bbdc1e3fde
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6be98589-31b2-475b-90a6-98fed71ae07d/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/99cc56c49ea22eaf929c14180a5625096c6652ae122fb35d913ae774604965f0

File information

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

Malspam

Formbook

gz 02a350c2c3dd74dd3f2bebeb1e994491a7b184ef73a3146e6bbe22fe1087bca2

Formbook

Executable exe 99cc56c49ea22eaf929c14180a5625096c6652ae122fb35d913ae774604965f0

(this sample)

  
Dropped by
MD5 fd72340f1790a916e337bf7797007109
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72791/
  
Dropped by
SHA256 02a350c2c3dd74dd3f2bebeb1e994491a7b184ef73a3146e6bbe22fe1087bca2

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