MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments 1
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SHA256 hash: de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d
SHA3-384 hash: c9f475c97bd7c51fa3cec14695bb5bff12389689e2708371e432e363bd4cb98847a5770ace5cb98d05b7199d452a9d7d
SHA1 hash: 88f2c1e356ee926042ad06345f0bd2333fcdd273
MD5 hash: cc0458fa6fb1ba005a27dcaa0c056f1f
humanhash: india-tennis-steak-summer
File name:cc0458fa6fb1ba005a27dcaa0c056f1f
Download: download sample
Signature Formbook
Create hunting rule
File size:737'792 bytes
First seen:2021-10-12 15:31:59 UTC
Last seen:2021-10-12 17:16:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:0MHSBCAXT+FaCuMHALzXuw34RMWFzP89ARxuop5D6MfqoUsKfF:0lBfoAXV4RMQg9e57SoUsKfF
Threatray 10'425 similar samples on MalwareBazaar
TLSH T153F412517B8BCE93C06AC7754266B2F283753872E6C2C61936E0A2BF64633569FC3741
File icon (PE):PE icon
dhash icon dcfcf8f0f0c0c4c6 (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
164
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://13.92.100.208/msm/wins.exe
Verdict:
Malicious activity
Analysis date:
2021-10-12 16:32:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8a82ecad-c699-47a6-a377-1854efd01ce0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/196974/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.15832.20291.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6165aa749fb4d8593d629711/reports/06a60b8b-d021-48b6-aec6-33bc3d30b1d8/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/24dab343-0129-4c91-b02b-f62c12e3d827
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/868828
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Self deletion via cmd delete
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 501252 Sample: XaTgTJhfol Startdate: 12/10/2021 Architecture: WINDOWS Score: 100 33 www.xn--aprendes-espaol-brb.com 2->33 35 www.promiseface.com 2->35 37 4 other IPs or domains 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 7 other signatures 2->51 11 XaTgTJhfol.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\XaTgTJhfol.exe.log, ASCII 11->31 dropped 65 Tries to detect virtualization through RDTSC time measurements 11->65 15 XaTgTJhfol.exe 11->15         started        18 XaTgTJhfol.exe 11->18         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 20 explorer.exe 15->20 injected process9 dnsIp10 39 www.fospine.online 185.68.16.67, 49825, 80 UKRAINE-ASUA Ukraine 20->39 41 www.rayofdesign.online 203.170.80.250, 49824, 80 DREAMSCAPE-AS-APDreamscapeNetworksLimitedAU Australia 20->41 43 8 other IPs or domains 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 55 Performs DNS queries to domains with low reputation 20->55 24 explorer.exe 20->24         started        signatures11 process12 signatures13 57 Self deletion via cmd delete 24->57 59 Modifies the context of a thread in another process (thread injection) 24->59 61 Maps a DLL or memory area into another process 24->61 63 Tries to detect virtualization through RDTSC time measurements 24->63 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-10-12 12:04:18 UTC
AV detection:
18 of 45 (40.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1836e41307578c7d04069263ba049bb64348e13f1ce41798c7dfd6512334c8ed
Formbook
2dc07e970dd5581d1bd22d69e454dceda70d8f87cc84757f86c094b2fdb7f985
Formbook
2ef7e1f834d6901fe15bcdbf1c35bb858b921e959d233065277a1457bd72549d
Formbook
3dd5fcdaf3b5e646b350d90bd538f6a175fa38834d4737252d038ffd0413412b
Formbook
4b4efdb81c426d5bfcd3ec8f3c34e573a97bf9644bd6524b0e87baa0931775f8
Formbook
4dc95a3bcf000bee17c567dcb6047c2e523641ad704f6e677421e817440c51f4
Formbook
67c2d1838c17151b34861887e15359c92dad555ce861d809b2f7cd9688e4455c
Formbook
7811bd14cb7fe9de30afeb44ca4d2f009e0e5f0488ad07f282ad0327b4ecd0b5
Formbook
90995079eb10cbbc7da16c81c68775a46c65a2901eca1731d537192d8266fed0
Formbook
affea9c276ded88eea1e39ac39fb19373c4b62d4251fb1d06f37a05e35dfa463
Formbook
+ 10'415 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:mexq loader rat
Link:
https://tria.ge/reports/211012-syl8vscebq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.aliexpress-br.com/mexq/
Unpacked files
SH256 hash:
cdcc0861e8b5470d5a925f716b26ddce9fef3bf46940b9bbbbdfe73c3a213d2d
MD5 hash:
100ab8d220e44515f3991b41a16f772c
SHA1 hash:
7bb1b8da84e68add74bf652f9bdb5f91a7d2d98f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
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Link:
https://www.unpac.me/results/e153a147-b793-4502-a814-377a4592dca9/
Parent samples :
de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d
2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362
9c9a99423087bdfd23df04a29984273ba056021ee54e815d2cd85103a9548eff
04ed65784009bd39c546c4a6473a44799d0444d40ff9796c2921a70db6ec2a72
0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef
SH256 hash:
7c1e354e469add5e68ee1cf4aa07972cc3af93f3d2e56e7057a682a7e7c6727c
MD5 hash:
68c19d3b35097488e19db08e0ecce95f
SHA1 hash:
cb9ae6502620957f83f5299dfcdb28a13b5c4555
Link:
https://www.unpac.me/results/e153a147-b793-4502-a814-377a4592dca9/
SH256 hash:
eda4d687b865aed0078ab87078de7d9722888b2d2af71c6fc0dcdc986ffb7567
MD5 hash:
12cf5402be16590c300b442a66e9ebc1
SHA1 hash:
0ea28394d301ca1ce840f039d2da62a5ce6d9334
Link:
https://www.unpac.me/results/e153a147-b793-4502-a814-377a4592dca9/
SH256 hash:
de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d
MD5 hash:
cc0458fa6fb1ba005a27dcaa0c056f1f
SHA1 hash:
88f2c1e356ee926042ad06345f0bd2333fcdd273
Link:
https://www.unpac.me/results/e153a147-b793-4502-a814-377a4592dca9/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/de77b81edea1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d

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
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Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1671186/
Cape
Cape
https://www.capesandbox.com/analysis/196974/

Comments


Avatar
zbet commented on 2021-10-12 15:32:00 UTC

url : hxxp://13.92.100.208/msm/wins.exe