MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40e302fcbc592e6f845df3a731f3204c3026ebc929d290f77477857a4dccb559. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 40e302fcbc592e6f845df3a731f3204c3026ebc929d290f77477857a4dccb559
SHA3-384 hash: 8b62c10b8295b71d37208e05dd103ff68a74b5a7deb0375860e6530bbf5060e0b1c7834d0d6e581fe8602404b1c70755
SHA1 hash: ef4c720fad334058a87eb453dc89e3db2d63c530
MD5 hash: c6418cfef98a2ba2eec3f998e35faf7d
humanhash: wolfram-cat-oscar-monkey
File name:H4A2-423-EM152-010.TIF.exe
Download: download sample
Signature Formbook
File size:547'840 bytes
First seen:2020-11-07 10:06:11 UTC
Last seen:2020-11-13 15:52:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:vJJ1pJXniuDLqp97Yn8HlOjwcSTJnUMiJPgC0zG6tBwV2i:vJJ1pZiuDLqps8FywvuHJPgZzTtBJi
Threatray 2'879 similar samples on MalwareBazaar
TLSH C9C4F1780BDC8D89D63E6374D520111483B0F4037A13EF1EE9ADA47C2DA77C2DAE6666
Reporter abuse_ch
Tags:exe FormBook geo KOR


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mail-smail-vm50.hanmail.net
Sending IP: 203.133.180.238
From: 권성록 <dy5648@daum.net>
Subject: 견적문의 드립니다.(권성록 입니다.)
Attachment: H4A2-423-EM152-010.TIF_xls.ace (contains "H4A2-423-EM152-010.TIF.exe")

Intelligence


File Origin
# of uploads :
3
# of downloads :
95
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Injects a PE file into a foreign processes
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
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 310961 Sample: H4A2-423-EM152-010.TIF.exe Startdate: 07/11/2020 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected AntiVM_3 2->40 42 4 other signatures 2->42 10 H4A2-423-EM152-010.TIF.exe 3 2->10         started        process3 file4 28 C:\Users\...\H4A2-423-EM152-010.TIF.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 H4A2-423-EM152-010.TIF.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.smobz.com 91.195.240.13, 49773, 80 SEDO-ASDE Germany 17->30 32 www.seekinward.com 66.96.162.146, 49776, 80 BIZLAND-SDUS United States 17->32 34 3 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 help.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-11-05 03:32:52 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
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.accionfotos.com/ukj/
Unpacked files
SH256 hash:
40e302fcbc592e6f845df3a731f3204c3026ebc929d290f77477857a4dccb559
MD5 hash:
c6418cfef98a2ba2eec3f998e35faf7d
SHA1 hash:
ef4c720fad334058a87eb453dc89e3db2d63c530
SH256 hash:
f05164c6a8daffb3b61aa72d24738d2b8b2f39af13cd7c4a5fbd9f96bf6bbfcd
MD5 hash:
6c55ed392314cf83893db343bbf7614c
SHA1 hash:
8ce2ab2ac2fb0287d1210d8a15418eb4e7a5477a
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
SH256 hash:
9322fa5d0e259ff6a02fd666319d4e734e30b7066f0494a8390f54b2acf2cdd6
MD5 hash:
1e1608d4e7e9aefa3631fdf48b0be10e
SHA1 hash:
ffc6cc6953d8a2d6e1184f6490292a201c2bb254
SH256 hash:
4164f6659ed07c2da64b9c7e619cca31a0342267ad6427a131972809117169da
MD5 hash:
c5c92a39f5f3df155cc00d352750979a
SHA1 hash:
4768e47cb129c16c1f90293778d7efc4afc50c84
Detections:
win_formbook_g0 win_formbook_auto
Please note that we are no longer able to provide a coverage score for Virus Total.

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:APT32_KerrDown
Rule name:Embedded_PE

File information


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

Malspam

Formbook

Executable exe 40e302fcbc592e6f845df3a731f3204c3026ebc929d290f77477857a4dccb559

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments