MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b23cdae890d1810c8c5333e1e594fd200bd37d7e8c70c69862548893d7973b9. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 1b23cdae890d1810c8c5333e1e594fd200bd37d7e8c70c69862548893d7973b9
SHA3-384 hash: 8db9ce2d69a7bee350c588134297233e0ae9d15a7cf0e287f414180589bf98e69fa1a49890f25c6ea57de88e48084982
SHA1 hash: feb6237400d9093ead52cee86ea008533648ed89
MD5 hash: 76050e409dfcb139fa3470d9ee52c96b
humanhash: sweet-ten-blossom-vermont
File name:LBHkeG0UJk1YkgS.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:492'032 bytes
First seen:2021-11-29 02:52:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:+pYcrq3cPKYQwHSuue3HSuGETiRk4khPRHLnLCAaGykWH:+pYcrbCMyBeCuU2LCF/kWH
Threatray 11'722 similar samples on MalwareBazaar
TLSH T166A422907728C73BC2BE437650A521491BBC6B432821C205BBD470CDADFB7C6A66E5DE
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
172
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
LBHkeG0UJk1YkgS.exe
Verdict:
Malicious activity
Analysis date:
2021-11-29 02:54:54 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/5c2f86c8-1fb6-4110-bc25-7a4b67ed9a10

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.MachineLearning.Anomalous.100.17684.16147.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a44090bbfd2af97cb8d7a6/reports/3bfc17fd-51a4-4917-ba2f-8954f392f955/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b5734785-3de2-464d-ab22-f8a78ff25536
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/897665
Signature
Adds a directory exclusion to Windows Defender
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 530142 Sample: LBHkeG0UJk1YkgS.exe Startdate: 29/11/2021 Architecture: WINDOWS Score: 100 43 www.medstartup.net 2->43 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 9 other signatures 2->57 10 LBHkeG0UJk1YkgS.exe 7 2->10         started        signatures3 process4 file5 37 C:\Users\user\AppData\Roaming\RqmjAAIOO.exe, PE32 10->37 dropped 39 C:\Users\user\AppData\Local\...\tmpCCED.tmp, XML 10->39 dropped 41 C:\Users\user\...\LBHkeG0UJk1YkgS.exe.log, ASCII 10->41 dropped 69 Uses schtasks.exe or at.exe to add and modify task schedules 10->69 71 Adds a directory exclusion to Windows Defender 10->71 73 Tries to detect virtualization through RDTSC time measurements 10->73 14 LBHkeG0UJk1YkgS.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        21 LBHkeG0UJk1YkgS.exe 10->21         started        signatures6 process7 signatures8 75 Modifies the context of a thread in another process (thread injection) 14->75 77 Maps a DLL or memory area into another process 14->77 79 Sample uses process hollowing technique 14->79 81 Queues an APC in another process (thread injection) 14->81 23 cscript.exe 14->23         started        26 explorer.exe 14->26 injected 29 conhost.exe 17->29         started        31 conhost.exe 19->31         started        process9 dnsIp10 59 Self deletion via cmd delete 23->59 61 Modifies the context of a thread in another process (thread injection) 23->61 63 Maps a DLL or memory area into another process 23->63 65 Tries to detect virtualization through RDTSC time measurements 23->65 33 cmd.exe 1 23->33         started        45 www.gillispiedesigns.net 199.34.228.175, 49817, 80 WEEBLYUS United States 26->45 47 www.3a5hlv.icu 45.139.238.63, 49841, 80 TEAM-HOSTASRU Russian Federation 26->47 49 11 other IPs or domains 26->49 67 System process connects to network (likely due to code injection or exploit) 26->67 signatures11 process12 process13 35 conhost.exe 33->35         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/1b23cdae890d1810c8c5333e1e594fd200bd37d7e8c70c69862548893d7973b9/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2021-11-29 02:53:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02a9e7458836d89cc02de2333176fcfdc9e462535e73e5b032f13e604b831b72
Formbook
19492b5df68b96dd4dd552f1a4735f795fa8bedef47ac95f1336d9731ec5edd2
Formbook
4cef73e83df4c6bb091a157a975a38a2c50be436649414a2ac7a55bc62e67da0
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
9230d02930c2f2c7426b24a9783bfbd80261d152895d15767f8c0f25c21a1409
Formbook
978a3b17f431b7ed469cd02080d82e4fb9d0b578417d061739fa790af3fb2741
Formbook
b9b0ce10496a723998fd40bd2662d231e6135c465000d319b708736570d0bd09
Formbook
c1204f5184f88ef6bccd8923cd3d3a3d33606f004e2407305500336556930ea5
Formbook
c8409ef72cffceaf4b66cb2ba74ed66316cf395e1b1ef9014a9024e44ef4136e
Formbook
f1d7ead1ca0f3e39c12bf5b67bb35cfc745acf0f587c2d6ce45eb2904f44aaa7
Formbook
+ 11'712 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:a96n loader rat suricata
Link:
https://tria.ge/reports/211129-ddbjasbcej/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.w8sf.com/a96n/
Unpacked files
SH256 hash:
0eaaffd07d0cf6d9b7abcb685b38542a9f4dc0383f900e10fb86f4a74ab7a09a
MD5 hash:
9cccfff14409a4b85b02cb6b71765d74
SHA1 hash:
0245f134b1752e97ab2fd05a1d4d899c83e680dd
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/567bc2f1-8c29-4042-9651-4c97d0854eb4/
Parent samples :
1301d283131415be83cf752a2b7969e9530bdd4e1ee43cb561717ab6040618c7
1b23cdae890d1810c8c5333e1e594fd200bd37d7e8c70c69862548893d7973b9
SH256 hash:
da6742892592443c8e82cb58f8722fe6eaf1d88dff506b1a10dd63da6e6b2aba
MD5 hash:
173a1ede7a5894d2c08e0f973094af6c
SHA1 hash:
fb48a2712f20c7ed32ef2ea8b47655923009804c
Link:
https://www.unpac.me/results/567bc2f1-8c29-4042-9651-4c97d0854eb4/
SH256 hash:
b19104b568ca3ddccc2a8d3d10ecddb1ea240171e798dc3a486292cfa14b6365
MD5 hash:
7b0900da932f4ed9630d65b04422736d
SHA1 hash:
6fa340436e3a8e73ae2b3e911f861483183c68ef
Link:
https://www.unpac.me/results/567bc2f1-8c29-4042-9651-4c97d0854eb4/
SH256 hash:
1b23cdae890d1810c8c5333e1e594fd200bd37d7e8c70c69862548893d7973b9
MD5 hash:
76050e409dfcb139fa3470d9ee52c96b
SHA1 hash:
feb6237400d9093ead52cee86ea008533648ed89
Link:
https://www.unpac.me/results/567bc2f1-8c29-4042-9651-4c97d0854eb4/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1b23cdae890d/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/1b23cdae890d1810c8c5333e1e594fd200bd37d7e8c70c69862548893d7973b9

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
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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.

Malspam

Formbook

Executable exe 1b23cdae890d1810c8c5333e1e594fd200bd37d7e8c70c69862548893d7973b9

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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