MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534
SHA3-384 hash: 2b3bfd55fa494120e767e897131b4e90567f8a69eaceef0521eed08624936fe81609d0cf1cf976d3afd82531fd8ed665
SHA1 hash: 1c73a152389568b5f0294032279d75003d24f4bc
MD5 hash: 265e29e0038861005a5faf3141d104f6
humanhash: oscar-seventeen-oven-hydrogen
File name:265e29e0038861005a5faf3141d104f6
Download: download sample
Signature Formbook
Create hunting rule
File size:1'356'800 bytes
First seen:2021-07-30 14:52:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:F5PS/d3AYdk/r3dOeAYM1HOxslVCmhz/aEYCmwRGPoN7vdiTbnFM:MmNOKM1HOInm/PoiM
Threatray 7'099 similar samples on MalwareBazaar
TLSH T1A955013589CCDBEACC9D03750B8C13703EF19896A1B0E5B53E4A56B0FAC0D69E979742
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
565
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RYP-210712.xlsx
Verdict:
Malicious activity
Analysis date:
2021-07-30 13:43:35 UTC
Tags:
encrypted exploit CVE-2017-11882 trojan formbook stealer
Link:
https://app.any.run/tasks/e3040855-5257-4514-87aa-a306510083fd

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/175312/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.967-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f7b7d8a6-3816-47ca-b48e-8fd09c42cc87
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/824545
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 456957 Sample: RhalEFwYre Startdate: 30/07/2021 Architecture: WINDOWS Score: 100 31 www.titanusedcarsworth.com 2->31 33 www.marcuslafond.com 2->33 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 3 other signatures 2->47 11 RhalEFwYre.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\RhalEFwYre.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 RhalEFwYre.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.freehypnosisevent.com 23.82.12.30, 49718, 80 LEASEWEB-USA-WDCUS United States 18->35 37 e-bizbox.com 18.156.210.41, 49721, 80 AMAZON-02US 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 colorcpl.exe 18->22         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 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-30 14:53:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
44
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22bd5ba035c9dcdda222f812537d8b49241b50c55042fd3b902ca8b36d17a398
Formbook
51abb9671e2f9449e14d2467c5e21d87362c68073652d925f26b61397246f91f
Formbook
56c952ead09765292ab4e2db9739943884289c6de37028db2489cd12a46b97f8
Formbook
61be8eb2905c08febca2821b39701ea6a361ae21e807866d240b3b122221cf62
Formbook
8395de2fb2940f93de9e2058bae551d3631bb5e93b23b396c5042532f0d2de58
Formbook
9e23de70acc475a483df75190ca88ff14395f99074f84c8eb86b4eadf523e498
Formbook
b060cb81afd9113cfbbb1e346c99e503c545da47ed80096c021b7ca41c064c76
Formbook
b5e3426a888ddb5751f9802093f1bd10ec696b2994bee03b99b7ba2b4f21a57d
Formbook
ba02b1ff767d07fbcd13529b70ce92a08238ef31bdfc4058b23023fc8176d26b
Formbook
+ 7'089 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210730-5zrwkzsm5s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
CustAttr .NET packer
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.mobiessence.com/6mam/
Unpacked files
SH256 hash:
97d2fa1d01b2f9a2199896e05e0cf60c14a9f41ef2d72e15fbb862b7afa08438
MD5 hash:
68463851c0e6fe7a254c99fae763d454
SHA1 hash:
4587a5371d88c296a0184fe47ee0c5245b187127
Link:
https://www.unpac.me/results/6c63d35e-ca98-4e42-b2ab-fc3565bb7a0b/
SH256 hash:
cd9c7a84a66c6f55f472e67a985ae6278222817f355730d22a002e94d58da38a
MD5 hash:
11c0d085cb34a1cdcfa2b141ffa18d77
SHA1 hash:
a53255d33b71cbd86ceb38268fc1efaba616854f
Link:
https://www.unpac.me/results/6c63d35e-ca98-4e42-b2ab-fc3565bb7a0b/
SH256 hash:
4bae2204ca3e11ddfbdee6aaf0f8638fcd078183f356789b7ba3cb02cdb8443f
MD5 hash:
a9c3cc300a924e6ea662936b70a3acd3
SHA1 hash:
23f9b7e9720ed660de2d6fd943489f13e52a8206
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6c63d35e-ca98-4e42-b2ab-fc3565bb7a0b/
Parent samples :
8395de2fb2940f93de9e2058bae551d3631bb5e93b23b396c5042532f0d2de58
b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534
236348545989c7d1816067f0e7bf78c80d4782e2ac28ab6d9ddbb1a2d4f71cc4
3a30a00f6eab6a14476db7139c5512302b5fff48a3111ccb6ae8e0964213f8ff
SH256 hash:
b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534
MD5 hash:
265e29e0038861005a5faf3141d104f6
SHA1 hash:
1c73a152389568b5f0294032279d75003d24f4bc
Link:
https://www.unpac.me/results/6c63d35e-ca98-4e42-b2ab-fc3565bb7a0b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534

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
Create hunting rule
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 b875a5e660e0e64042fc182c3739d6916568132cf1cc2f8919abe516ac4cf534

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1492478/
Cape
Cape
https://www.capesandbox.com/analysis/175312/

Comments


Avatar
zbet commented on 2021-07-30 14:52:51 UTC

url : hxxp://198.12.91.161/hxxp/vbc.exe