MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb8dfee74c117c8dd5394ffefa455334203cc24e6872bb106bec2ec3800dd39f. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb8dfee74c117c8dd5394ffefa455334203cc24e6872bb106bec2ec3800dd39f
SHA3-384 hash: 1f285c6abbb5d6f6153492e25d1e9273b2c518b228c9151770f91e136655cc6f76cb0f9301651c6fc0d2fbc7926ecfcf
SHA1 hash: 6d2e57b044e8e0ff74c0ae2d7d71840b1918bbd2
MD5 hash: 12afdbba023707a63b85ce71273e7239
humanhash: whiskey-maryland-carolina-papa
File name:12afdbba023707a63b85ce71273e7239.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:513'536 bytes
First seen:2021-04-08 16:57:28 UTC
Last seen:2021-04-08 17:56:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:RV3NcrU6iOma+y3tQ8lQBCq40VRzFhsM7CDXRSwGNUTgFuhWqte6oYIc67sukeQX:RSxiOl+y4BC3szDhqsgzZxTphzxXw6R
Threatray 4'571 similar samples on MalwareBazaar
TLSH B7B4010127E89725E4FEB7B95970610003F4E92AA332F76DFF8560A909A3FD58B4171B
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
12afdbba023707a63b85ce71273e7239.exe
Verdict:
Suspicious activity
Analysis date:
2021-04-08 17:06:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e34064f4-2f0c-4f38-a49f-1e6523db6664

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/133280/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.11482.18619.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/670574
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
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: 384232 Sample: qRsvaKcvxZ.exe Startdate: 08/04/2021 Architecture: WINDOWS Score: 100 32 www.rosaandray.com 2->32 34 www.appexivo.com 2->34 36 rosaandray.com 2->36 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 5 other signatures 2->54 11 qRsvaKcvxZ.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\qRsvaKcvxZ.exe.log, ASCII 11->30 dropped 66 Tries to detect virtualization through RDTSC time measurements 11->66 68 Injects a PE file into a foreign processes 11->68 15 qRsvaKcvxZ.exe 11->15         started        signatures6 process7 signatures8 70 Modifies the context of a thread in another process (thread injection) 15->70 72 Maps a DLL or memory area into another process 15->72 74 Sample uses process hollowing technique 15->74 76 Queues an APC in another process (thread injection) 15->76 18 explorer.exe 15->18 injected process9 dnsIp10 38 girasol.zone 138.128.191.106, 80 DIMENOCUS United States 18->38 40 www.chestfreezersale.xyz 104.21.3.36, 49738, 80 CLOUDFLARENETUS United States 18->40 42 8 other IPs or domains 18->42 56 System process connects to network (likely due to code injection or exploit) 18->56 58 Performs DNS queries to domains with low reputation 18->58 22 msiexec.exe 12 18->22         started        signatures11 process12 dnsIp13 44 www.girasol.zone 22->44 46 girasol.zone 22->46 60 Modifies the context of a thread in another process (thread injection) 22->60 62 Maps a DLL or memory area into another process 22->62 64 Tries to detect virtualization through RDTSC time measurements 22->64 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cb8dfee74c117c8dd5394ffefa455334203cc24e6872bb106bec2ec3800dd39f/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-04-08 16:58:09 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zog75z2mcf6i3vjzj77purktgqqdzqsonbzlwedl5qxmhaan2opq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
220ab940326b10e217ed23f4806edd06fac3cf52cbd3c8863863eac6893b02ea
Formbook
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d0c601c45534124a91f7055d1d851a15d713d1a2b6ea7a5c5772eeca6a5847f4
Formbook
f56732d49b44a54bd841c98e78c86dc04719eaec2fed43c2b6429abbcf7eee60
Formbook
+ 4'561 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210408-tz9selm7aa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.okitmall.com/iu4d/
Unpacked files
SH256 hash:
c5519ef771321d62260735c62622297b284e823d97b29eed0dae704d89bb4c5f
MD5 hash:
0158502a4a1ee47ae2abfe604f2fd748
SHA1 hash:
3dec24548c89d943f3fe9a4dd0b8663cbdcf6e0d
Link:
https://www.unpac.me/results/c4ca047f-448f-4de0-a5b8-ebbd2abe45c2/
SH256 hash:
cb8dfee74c117c8dd5394ffefa455334203cc24e6872bb106bec2ec3800dd39f
MD5 hash:
12afdbba023707a63b85ce71273e7239
SHA1 hash:
6d2e57b044e8e0ff74c0ae2d7d71840b1918bbd2
Link:
https://www.unpac.me/results/c4ca047f-448f-4de0-a5b8-ebbd2abe45c2/
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/cb8dfee74c117c8dd5394ffefa455334203cc24e6872bb106bec2ec3800dd39f

File information

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

Web download

Formbook

Executable exe cb8dfee74c117c8dd5394ffefa455334203cc24e6872bb106bec2ec3800dd39f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1104220/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/133280/

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