MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d5bb553d60ae8991ac063133535b4e3b9d858e0235a8d48c9c27cc8c52b663b. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1d5bb553d60ae8991ac063133535b4e3b9d858e0235a8d48c9c27cc8c52b663b
SHA3-384 hash: b5e1ba7a87e8d9437953d1ac4fb1989b51f5c248bf27dd4be76464785985c87dd6dec3ba5e89f6917d612bae93883bdf
SHA1 hash: a176e4d5a13a038a209005fe185945c847c3f1d3
MD5 hash: e3c28f839ac6e19f1512e10394d213f9
humanhash: august-yellow-ink-aspen
File name:e3c28f839ac6e19f1512e10394d213f9
Download: download sample
Signature Formbook
Create hunting rule
File size:1'296'928 bytes
First seen:2023-06-08 09:14:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3abe302b6d9a1256e6a915429af4ffd2 (283 x GuLoader, 38 x Formbook, 25 x Loki)
ssdeep 24576:BPwRKrZYLB3cE6G3VibpHIdebodR6jlKFtQVUv+iP8o79bO+I:BCK1YIG32poHRS2tQuWikK9jI
Threatray 3'122 similar samples on MalwareBazaar
TLSH T12F5523927991CAC6E40906F12EF3C66661397C601D9BB243B6CEB7BFD672446CC085CE
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe FormBook signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-05-22T04:51:46Z
Valid to:2026-05-21T04:51:46Z
Serial number: 354185fd472f67889ebf5832f3a072926e224800
Thumbprint Algorithm:SHA256
Thumbprint: 980d233ac1d464f3249ca16f88c72a519200b4d83073a329b668d12391e147ff
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
279
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
930ee6aa6ef31ed1b129d72cabf61487
Verdict:
Malicious activity
Analysis date:
2023-06-08 04:48:24 UTC
Tags:
opendir exploit cve-2017-11882 loader guloader
Link:
https://app.any.run/tasks/68d89575-14cc-4390-9ba0-883a408f9525

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/396830/
Detection(s):
SecuriteInfo.com.Adware.Downware.19579.26308.2454.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/89922/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64819c19598353519b465af2/reports/a956649e-98bd-40f7-84d4-c92424f12925/overview
Verdict:
Malicious
Labled as:
Trojan.NSIS.Makoob
Link:
https://www.hybrid-analysis.com/sample/1d5bb553d60ae8991ac063133535b4e3b9d858e0235a8d48c9c27cc8c52b663b
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e28e0afd-0e3c-40b0-9b86-358d492c8b1b
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1251025
Signature
Antivirus detection for URL or domain
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 884041 Sample: R2FEJEsWNI.exe Startdate: 08/06/2023 Architecture: WINDOWS Score: 100 30 www.toulouse.gold 2->30 32 www.thecareskin.com 2->32 34 26 other IPs or domains 2->34 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Found malware configuration 2->54 56 9 other signatures 2->56 10 R2FEJEsWNI.exe 2 22 2->10         started        signatures3 process4 file5 28 C:\Users\user\AppData\Local\...\System.dll, PE32 10->28 dropped 58 Tries to detect Any.run 10->58 14 R2FEJEsWNI.exe 6 10->14         started        signatures6 process7 dnsIp8 42 107.172.148.217, 49921, 80 AS-COLOCROSSINGUS United States 14->42 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Tries to detect Any.run 14->62 64 Maps a DLL or memory area into another process 14->64 66 2 other signatures 14->66 18 cmmon32.exe 14->18         started        21 explorer.exe 5 1 14->21 injected signatures9 process10 dnsIp11 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 24 cmd.exe 1 18->24         started        36 allurepet.site 93.89.226.17, 49922, 80 TR-FBSTR Turkey 21->36 38 www.toulouse.gold 146.59.209.152, 49927, 80 OVHFR Norway 21->38 40 7 other IPs or domains 21->40 48 System process connects to network (likely due to code injection or exploit) 21->48 signatures12 process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1d5bb553d60ae8991ac063133535b4e3b9d858e0235a8d48c9c27cc8c52b663b/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-06-08 05:13:24 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dvn3ku6wblujsgwammjtknnu4o45qwhaenni2sgjyj6mrrjlmy5q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
10e1fd083fbaa700f1580863bc6bdc928fff23f2edc479c6a8d4e3d7ff57926c
Formbook
2799249b9775bcf4a66a5f7fc52a40959815b1bb4b2b882b4f1e57d5dec406c1
Formbook
28c3fe7155927cb7482afbe59c25193a1a34856caa296cec11f9a3404df33d7c
Formbook
79d20833e8b6c58ece93da20c2c927565e26198e5a6c802cbf5b559429eb4a94
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87d3bbd8edcab168832890e4d362542e2be35fe286ce9a2ebeeb8216d08cca0f
Formbook
896d0711b287b0914d88b93ff8d06623c60f45b405e12cbc34a406e09942a577
Formbook
a79e68bc2d8643ff603ce0333efb343924760abc43edcc450c124fe4b9142c75
Formbook
c643ce9cf3045a605b3ed588dc7e992de791468c841013fcdb310e751b237ad3
Formbook
df810d99cd1588f21a80f27dc691efb44083567f1385978dad10611858bad134
Formbook
+ 3'112 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:guloader campaign:btrd downloader rat spyware stealer trojan
Link:
https://tria.ge/reports/230608-k7wvnade67/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Formbook payload
Formbook
Guloader,Cloudeye
Unpacked files
SH256 hash:
a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1
MD5 hash:
fbe295e5a1acfbd0a6271898f885fe6a
SHA1 hash:
d6d205922e61635472efb13c2bb92c9ac6cb96da
Link:
https://www.unpac.me/results/30ab0cc7-979c-49db-8129-d09a748b08f7/
SH256 hash:
1d5bb553d60ae8991ac063133535b4e3b9d858e0235a8d48c9c27cc8c52b663b
MD5 hash:
e3c28f839ac6e19f1512e10394d213f9
SHA1 hash:
a176e4d5a13a038a209005fe185945c847c3f1d3
Link:
https://www.unpac.me/results/30ab0cc7-979c-49db-8129-d09a748b08f7/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1d5bb553d60a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1d5bb553d60ae8991ac063133535b4e3b9d858e0235a8d48c9c27cc8c52b663b

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Web download

Formbook

Executable exe 1d5bb553d60ae8991ac063133535b4e3b9d858e0235a8d48c9c27cc8c52b663b

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/396830/
  
URLhaus
https://urlhaus.abuse.ch/url/2655582/

Comments


Avatar
zbet commented on 2023-06-08 09:14:39 UTC

url : hxxp://107.172.148.217/24/cleanmgr.exe