MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b6a34ba043c45cfc63367a5a35d3c58b074d723c666d018b3c4c0d950e42b40. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b6a34ba043c45cfc63367a5a35d3c58b074d723c666d018b3c4c0d950e42b40
SHA3-384 hash: 45dea08fb3d76eee63b6a5f33051bbc235ee36af2a6dca410a99198d709e0a67756a7f3ed1322039239373f01afe0821
SHA1 hash: 73ebd37572a79adec31ceefda6bfec90a9f70f3a
MD5 hash: 55a9f49ac7b18c445a01aa766954a68d
humanhash: fourteen-pasta-hamper-pluto
File name:20210111140930669.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:889'344 bytes
First seen:2021-01-11 09:00:09 UTC
Last seen:2021-01-12 22:39:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:ATrykM2jnS7femqz0BNY4t+LDb+C41yRi1OYA3o3m1T2mnS16m3sK2LsNNhVKSp9:lGHl41ysDAz1Pnq1DVzgiVNn
Threatray 3'339 similar samples on MalwareBazaar
TLSH F5158D15DF91D710D3BC22FE240551A12BF1D769F3D8E328EDA5B0B6AFA652801FE182
Reporter abuse_ch
Tags:exe FormBook geo KOR


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mail-smail-vm87.hanmail.net
Sending IP: 211.231.106.162
From: 권성록 <kss0422000@hanmail.net>
Subject: 견적문의 드립니다.(권성록 입니다.)
Attachment: 20210111140930669.cab (contains "20210111140930669.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
134
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
20210111140930669.exe.bin
Verdict:
Malicious activity
Analysis date:
2021-01-11 07:08:00 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/fdeb169e-fc3b-4346-8c2f-574701dd7705

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/111252/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
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
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/577748
Signature
Binary contains a suspicious time stamp
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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 netstat to query active network connections and open ports
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: 337929 Sample: 20210111140930669.exe Startdate: 11/01/2021 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 11 other signatures 2->52 10 20210111140930669.exe 7 2->10         started        process3 file4 32 C:\Users\user\AppData\Roaming\HOvZfcnD.exe, PE32 10->32 dropped 34 C:\Users\...\HOvZfcnD.exe:Zone.Identifier, ASCII 10->34 dropped 36 C:\Users\user\AppData\Local\Temp\tmpA6A.tmp, XML 10->36 dropped 38 C:\Users\user\...\20210111140930669.exe.log, ASCII 10->38 dropped 62 Tries to detect virtualization through RDTSC time measurements 10->62 14 20210111140930669.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 40 www.tickets2usa.com 185.53.178.13, 49761, 80 TEAMINTERNET-ASDE Germany 19->40 42 kingrvrentals.com 192.0.78.24, 49762, 80 AUTOMATTICUS United States 19->42 44 4 other IPs or domains 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 25 NETSTAT.EXE 19->25         started        signatures10 process11 signatures12 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1b6a34ba043c45cfc63367a5a35d3c58b074d723c666d018b3c4c0d950e42b40/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dnvdjoqehrc47rrtm6s2gxj4lcyhjvzdyztnagftytansuhefnaa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
netwirerc
Create hunting rule
Similar samples:
054d100afdadfa10c55b97562d697358e8189b4d9414403626a480a7d4474c96
Formbook
699ca93661e2c1ba5dc75fa4c7041b23a4d24ebd9de3b5bdc6a0876863d00ea8
Formbook
6ff2bdc1f84168996dc5e78e976f7ea1a8db3727d051d9a76aefb401db0bae52
Formbook
85729ea0b65a0a56b59f3e8ed961d4ce07f34804fb6b466b6d1c32e17cda4d8d
Formbook
a13d885104ce1f6005c956cb50e82aec853b48b98c881d6b71fda31580f139f7
Formbook
a63c16cb1a26010951dc0d60261f95b7236cd70c4843e906503ba7421ee139e2
Formbook
b775f99027bd54675dc308d80174478b62f33f6c432a7e2849ddf970b118bf41
Formbook
c18baa3cb8b70de1dbfef5c58cbdcb15593b0ddc5424ec736b2d2a0b7a703b97
Formbook
cd038025a544b6ef40204a1f7dc30f723790b16996bd540cc3cdbb6e47e8d242
Formbook
e141c331bbc43440e353a82fd9ac6e5446d6d9a6da6882026a086e34bb44f0f6
Formbook
+ 3'329 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210111-zgpmd8mhlx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.midnightblueinc.com/2kf/
Unpacked files
SH256 hash:
1b6a34ba043c45cfc63367a5a35d3c58b074d723c666d018b3c4c0d950e42b40
MD5 hash:
55a9f49ac7b18c445a01aa766954a68d
SHA1 hash:
73ebd37572a79adec31ceefda6bfec90a9f70f3a
Link:
https://www.unpac.me/results/6cc2a65e-42ed-4e4e-8e5a-016b473da7b0/
SH256 hash:
296620e9308a1069ca98d27c426f25f5c1f87d9240bb371c657571034b0261b5
MD5 hash:
4cf24d41a7882216740280e3294cb853
SHA1 hash:
6bcb31d3dc0a7d71da1067a628168664202769a4
Link:
https://www.unpac.me/results/6cc2a65e-42ed-4e4e-8e5a-016b473da7b0/
SH256 hash:
f0d6064111fc601f3b5b0de05f14f5c2c92264d61cd5352c1761927baea58202
MD5 hash:
fd3cfeb24b1d1d7a9afc959ceebb5ad5
SHA1 hash:
bd14f263f49dd86645a685200ac4701845a8e630
Link:
https://www.unpac.me/results/6cc2a65e-42ed-4e4e-8e5a-016b473da7b0/
SH256 hash:
f97565ec848cbd571e1e4702f7007a932b65ef1d9709a2f51b196381bbd74733
MD5 hash:
1c39769851bf066784c416a68cb32f2d
SHA1 hash:
7dc878633ddf8763f4ccf356f67a27fae908d227
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6cc2a65e-42ed-4e4e-8e5a-016b473da7b0/
Parent samples :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 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/1b6a34ba043c45cfc63367a5a35d3c58b074d723c666d018b3c4c0d950e42b40

File information

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

Malspam

Formbook

cab 5b3f1e4f2002d4582de37be0c1fb7614c7bf04ea20d2af3c37b8f8142c763593

Formbook

Executable exe 1b6a34ba043c45cfc63367a5a35d3c58b074d723c666d018b3c4c0d950e42b40

(this sample)

  
Dropped by
MD5 f70455f02a488a7282e29fb9e43c7bd7
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 5b3f1e4f2002d4582de37be0c1fb7614c7bf04ea20d2af3c37b8f8142c763593
Cape
Cape
https://www.capesandbox.com/analysis/111252/

Comments