MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f73bd79fa45052bdee47d286e58107be584dd64d6cafb38362d494d9b388356f. 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: 8


Intelligence 8 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f73bd79fa45052bdee47d286e58107be584dd64d6cafb38362d494d9b388356f
SHA3-384 hash: d06b2c1867a1c9783dfa01589cb9a6ed0233bbfd94d7cdc061db6a927d817dcfe5dfb6922dfecdb9efa150f95aa938ec
SHA1 hash: 362689cdf7e3152161fca7c5b3999887c664984f
MD5 hash: 62f2e02a7444736af7d43a473f41614d
humanhash: november-cardinal-louisiana-nevada
File name:taiwan.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'255'936 bytes
First seen:2021-04-07 05:55:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:/FLHeRHu4NWikhWCRy65WvSrMjuQKGpJHOZ/69NR4/z:/FLHeRHu4NIhWCRzQjlJCCrR4
Threatray 11 similar samples on MalwareBazaar
TLSH C84501246E9916C4D9FE36F4186280500BBDAE127BD2F718EBF474695E32933CE1061F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mail.archimedianet.it
Sending IP: 89.31.76.247
From: Pham Thanh Tung <fo@gachmpdtamt.com>
Subject: RE RE: RE RE: RE RE: RE RE: RE RE: RE RE: order
Attachment: taiwan.zip (contains "taiwan.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
taiwan.exe
Verdict:
Malicious activity
Analysis date:
2021-04-07 06:34:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fb8f2087-763f-4488-a620-dd8b63c1473d

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/132758/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.634.11135.20504.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
SUSPICIOUS
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/668340
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 383100 Sample: taiwan.exe Startdate: 07/04/2021 Architecture: WINDOWS Score: 100 67 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 10 other signatures 2->73 11 taiwan.exe 7 2->11         started        process3 file4 45 C:\Users\user\AppData\...\ZuweZGBkkebWDs.exe, PE32 11->45 dropped 47 C:\...\ZuweZGBkkebWDs.exe:Zone.Identifier, ASCII 11->47 dropped 49 C:\Users\user\AppData\Local\...\tmp3E6E.tmp, XML 11->49 dropped 51 C:\Users\user\AppData\...\taiwan.exe.log, ASCII 11->51 dropped 89 Uses schtasks.exe or at.exe to add and modify task schedules 11->89 91 Writes to foreign memory regions 11->91 93 Injects a PE file into a foreign processes 11->93 15 RegSvcs.exe 6 11->15         started        19 schtasks.exe 1 11->19         started        signatures5 process6 file7 53 C:\Users\user\AppData\Roaming\suSwVklf.exe, PE32 15->53 dropped 61 Tries to detect virtualization through RDTSC time measurements 15->61 63 Injects a PE file into a foreign processes 15->63 21 RegSvcs.exe 15->21         started        24 schtasks.exe 1 15->24         started        26 RegSvcs.exe 15->26         started        28 RegSvcs.exe 15->28         started        30 conhost.exe 19->30         started        signatures8 process9 signatures10 75 Modifies the context of a thread in another process (thread injection) 21->75 77 Maps a DLL or memory area into another process 21->77 79 Sample uses process hollowing technique 21->79 81 Queues an APC in another process (thread injection) 21->81 32 explorer.exe 21->32 injected 36 conhost.exe 24->36         started        process11 dnsIp12 55 www.coachingfortransformation.co.uk 185.2.6.8, 49757, 80 REGISTER_UK-ASGB Italy 32->55 57 sheensheer.com 13.230.203.251, 49764, 80 AMAZON-02US United States 32->57 59 www.sheensheer.com 32->59 65 System process connects to network (likely due to code injection or exploit) 32->65 38 wlanext.exe 32->38         started        signatures13 process14 signatures15 83 Modifies the context of a thread in another process (thread injection) 38->83 85 Maps a DLL or memory area into another process 38->85 87 Tries to detect virtualization through RDTSC time measurements 38->87 41 cmd.exe 1 38->41         started        process16 process17 43 conhost.exe 41->43         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f73bd79fa45052bdee47d286e58107be584dd64d6cafb38362d494d9b388356f/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-04-07 00:44:42 UTC
AV detection:
5 of 48 (10.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6455ph5ekbjl33sh2kdolaihxzme3vsnnsx3ha3c2skntm4igvxq._file
Verdict:
unknown
Similar samples:
0726eef18a27b6e019baa87d12d004efc1e0fb42169acedb5a56fee6d39d8946
Formbook
084b7a2a142edf5c3ebcd6bcafebe00a6953b36eff6ed7dafd54a490e657b1f5
Formbook
1cf2c4b90a84ce31c99a4b74ed546b17b2332a868f75293f237ea0bb0a5835c4
Formbook
4ac0c7eebfc249cfcc200ff60ee5b1f2d7e4d6fb45544961f5ba7a7650f43a7f
Formbook
5501a072a478f1b6c6045154d4b3e5c102c5da98041f503d80b8a2b50bb6b85b
Formbook
5ef4f1d59492644372e4de91586798adb788432987848730694be8db0f968008
Formbook
69b433882a0be8350987589222a1b677cb948d1efea4e523b878a778bad33d4a
Formbook
6d13e70c1d1771bcbaedb34b5d89ea697d09cc78b3ed1a972def7dfd8a8f9325
Formbook
c4bd358aa9e15948a2713549f109f65124e5911aefa709e921da094aac16a163
Formbook
f3bb0f029466577eb6ae2f65253d518335a8d4b7862454445d32a8339499614d
Formbook
+ 1 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210407-42bpqeywqa/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
6590b9ec4fa84e44c372fda26f47d6d58859d74869621c6bdd4086e6ae411379
MD5 hash:
95dfa1a9015a17a1d49b4faa3f3d999d
SHA1 hash:
427b72727b28436554d0443d797f19b2ea37cc16
Link:
https://www.unpac.me/results/b66b9c43-9d32-4d00-b937-7be68b285cf5/
SH256 hash:
f73bd79fa45052bdee47d286e58107be584dd64d6cafb38362d494d9b388356f
MD5 hash:
62f2e02a7444736af7d43a473f41614d
SHA1 hash:
362689cdf7e3152161fca7c5b3999887c664984f
Link:
https://www.unpac.me/results/b66b9c43-9d32-4d00-b937-7be68b285cf5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/f73bd79fa45052bdee47d286e58107be584dd64d6cafb38362d494d9b388356f

File information

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

Malspam

Formbook

zip 1317178c535deac0cd5402fb944ed65542281da1a9d1c4e37c65287d108e6b0e

Formbook

Executable exe f73bd79fa45052bdee47d286e58107be584dd64d6cafb38362d494d9b388356f

(this sample)

  
Dropped by
MD5 2e4785bd10fa399ea41c1eb38fff3edc
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 1317178c535deac0cd5402fb944ed65542281da1a9d1c4e37c65287d108e6b0e
Cape
Cape
https://www.capesandbox.com/analysis/132758/

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