MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81e7927ab5ca518d06687dc18d5c4df22198011494322486e562136344d2513b. 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: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81e7927ab5ca518d06687dc18d5c4df22198011494322486e562136344d2513b
SHA3-384 hash: 07e22cfd3d8ae9b12ddc08b698dcd288cd35e4e61e0cad8b744a948ab0a5b28da6f1bd0fceb1be658ac48eadf0dc0673
SHA1 hash: 087721c9ad24c3895e66186c208512706b64f025
MD5 hash: 8fb76e6c9b652646d7c1f7f377c97cbd
humanhash: crazy-romeo-oscar-asparagus
File name:8fb76e6c9b652646d7c1f7f377c97cbd.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'062'912 bytes
First seen:2021-01-13 07:12:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:w04AnTJudOCH6pIANoO1bymJAl0X4DZBTlhuET9SCs5I6sBraVs3W+Q9gJJ1IMDs:AECH6RgMAeQZBTl4I6scVst5
Threatray 3'336 similar samples on MalwareBazaar
TLSH 5B358CBC35403DEEC8278EBB88951C60D92064A7974FE2D355231DEA5E0CBDA8E543D7
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
111
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/111692/
Detection(s):
SecuriteInfo.com.Trojan.Siggen11.57608.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/579830
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for dropped file
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)
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
Sigma detected: Scheduled temp file as task from temp location
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 338960 Sample: AOA4sx8Z7l.exe Startdate: 13/01/2021 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 9 other signatures 2->55 10 AOA4sx8Z7l.exe 6 2->10         started        process3 file4 33 C:\Users\user\AppData\Roaming\dromkeG.exe, PE32 10->33 dropped 35 C:\Users\user\AppData\Local\...\tmp1F15.tmp, XML 10->35 dropped 37 C:\Users\user\AppData\...\AOA4sx8Z7l.exe.log, ASCII 10->37 dropped 65 Detected unpacking (changes PE section rights) 10->65 67 Detected unpacking (overwrites its own PE header) 10->67 69 Tries to detect virtualization through RDTSC time measurements 10->69 14 AOA4sx8Z7l.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 71 Modifies the context of a thread in another process (thread injection) 14->71 73 Maps a DLL or memory area into another process 14->73 75 Sample uses process hollowing technique 14->75 77 Queues an APC in another process (thread injection) 14->77 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 39 www.rickettes.com 91.195.241.137, 49773, 80 SEDO-ASDE Germany 19->39 41 www.heliaoyixue.com 154.212.39.175, 80 PEGTECHINCUS Seychelles 19->41 43 23 other IPs or domains 19->43 57 System process connects to network (likely due to code injection or exploit) 19->57 25 msiexec.exe 12 19->25         started        signatures10 process11 dnsIp12 45 www.heliaoyixue.com 25->45 47 192.168.2.1 unknown unknown 25->47 59 Modifies the context of a thread in another process (thread injection) 25->59 61 Maps a DLL or memory area into another process 25->61 63 Tries to detect virtualization through RDTSC time measurements 25->63 29 cmd.exe 1 25->29         started        signatures13 process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81e7927ab5ca518d06687dc18d5c4df22198011494322486e562136344d2513b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-13 07:13:08 UTC
AV detection:
16 of 44 (36.36%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhtze6vvzjiy2btipxay2xcn6iqzqaiusqzcjbxfmijwgrgske5q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
180444e71cfbd639cea07e4cdc28099a444839f5ad3eb024b87dc9664fdfd5ec
Formbook
21c88bab09fd103fd1479524503789677b0a7822eb10468c20b4fba58a952490
Formbook
2e7e018ee5838bf8450f343923ba4ce6c1282ed1b727fc4ab5cbe69b6204fca2
Formbook
574e414e22746d7781bd6ca6f4cc64be417b65696104dda71b037c9584cea01f
Formbook
7a847a23a2407172035d5eeb7fe1117c851b2947e133c1ca3a236293e5fc5432
Formbook
8d604d5419d217ecd6a9d5b4917e441069b433c8429323600a18b36df608f751
Formbook
b28f4495e2cda5a5fef0408701a136d820c7cf2e7a45dd101e70b31458e31530
Formbook
b9e89d7766f894c102cd449dace5e9c1ef8f3cdca070af5f6ce22a7737eb593a
Formbook
cdfc1600f7f5656fb2b72fd10da44b8f7e12f4c40027a4338251e5d7e9f0e743
Formbook
f1c600a86d9492512f5c80574f885bc0b2c0f058419f58b1c8800eb6e1502713
Formbook
+ 3'326 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210113-wtqmqz6vj6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.h-v-biz.com/c8so/
Unpacked files
SH256 hash:
81e7927ab5ca518d06687dc18d5c4df22198011494322486e562136344d2513b
MD5 hash:
8fb76e6c9b652646d7c1f7f377c97cbd
SHA1 hash:
087721c9ad24c3895e66186c208512706b64f025
Link:
https://www.unpac.me/results/08cb5de8-f5e2-4b7f-879d-947df605f103/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/08cb5de8-f5e2-4b7f-879d-947df605f103/
SH256 hash:
c628279ec26a0b7d645d236a8baa51a999f46b832cb857838db4a822e8454fab
MD5 hash:
6e855e3fe36b58a868ce6920ea3a9295
SHA1 hash:
cf669f2bdf7714d69857036233cf152e34fde117
Link:
https://www.unpac.me/results/08cb5de8-f5e2-4b7f-879d-947df605f103/
SH256 hash:
205f2dd5e872980bbdbfefe07483d4f3f569f286ee7c6ffb1ef229b1d89d678f
MD5 hash:
60b2ecb4a4243aaf2b6b96006611bdf5
SHA1 hash:
b5ef78f1223cb95f8cb609b5c5e726513afd0ade
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/08cb5de8-f5e2-4b7f-879d-947df605f103/
Parent samples :
81e7927ab5ca518d06687dc18d5c4df22198011494322486e562136344d2513b
41440a2e9db109558bde920dddba0eee3a5f269eef4c0d80eedf6a0bf0445a70
6a048c6c5339d2b401597623a0fd5141202679f87cebe7f2a89aec66254e789c
ff8e04148000568fddb55c18693d4aef878dc693b799acc941b0ccbad55464e7
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/81e7927ab5ca518d06687dc18d5c4df22198011494322486e562136344d2513b

File information

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

Web download

Formbook

Executable exe 81e7927ab5ca518d06687dc18d5c4df22198011494322486e562136344d2513b

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/111692/
  
URLhaus
https://urlhaus.abuse.ch/url/957287/
  
Delivery method
Distributed via web download

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