MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a59693f90c55791c544845b00cd4a8e6333d83cc83c8d8be42a7b028af4098e0. 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: a59693f90c55791c544845b00cd4a8e6333d83cc83c8d8be42a7b028af4098e0
SHA3-384 hash: 0013d11e942faa30b1c2df6e3bd4e55ea4c5571ffc9f85918cc24715d1c28ecadd10ab5e8ddbfbd4282c204d47cc31b9
SHA1 hash: 4900a6b2a0fba0845c79d9621a5d41b4d4451eca
MD5 hash: 33de5150c627c6f5ba4787ad6899eb2a
humanhash: ink-magazine-juliet-vegan
File name:RQ100932871.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:757'760 bytes
First seen:2020-10-20 08:36:49 UTC
Last seen:2020-10-25 18:23:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'476 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:4XM7TAWi6rFZuduEukyokFPBwX2ENTrX/xlzys1CToODyv+29xV3Xo8x:lgLZv/DW9s
Threatray 2'571 similar samples on MalwareBazaar
TLSH CCF4712439BF904DF173AE7A9ED4B5E68E1BF7722606A46D2062C3060613A43DFCD539
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: server.exlabesa.com
Sending IP: 79.137.45.222
From: Carol -Salazar <logistica@dominos.com.pe>
Reply-To: Carol -Salazar <mgraoui-ssd@planetmail.net>
Subject: DEPOSITO 16.10.20
Attachment: IM930984.zip (contains "RQ100932871.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/73371/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/497357
Signature
Creates an undocumented autostart registry key
Detected FormBook malware
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
Sigma detected: Steal Google chrome login data
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 300879 Sample: RQ100932871.exe Startdate: 20/10/2020 Architecture: WINDOWS Score: 100 44 www.bizzmk.com 2->44 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 6 other signatures 2->58 11 RQ100932871.exe 1 2->11         started        signatures3 process4 file5 42 C:\Users\user\AppData\...\RQ100932871.exe.log, ASCII 11->42 dropped 72 Tries to detect virtualization through RDTSC time measurements 11->72 74 Injects a PE file into a foreign processes 11->74 15 RQ100932871.exe 11->15         started        signatures6 process7 signatures8 76 Modifies the context of a thread in another process (thread injection) 15->76 78 Maps a DLL or memory area into another process 15->78 80 Sample uses process hollowing technique 15->80 82 Queues an APC in another process (thread injection) 15->82 18 explorer.exe 15->18 injected process9 dnsIp10 46 montgomerytemporaryhousing.com 34.102.136.180, 49704, 80 GOOGLEUS United States 18->46 48 www.montgomerytemporaryhousing.com 18->48 50 2 other IPs or domains 18->50 60 System process connects to network (likely due to code injection or exploit) 18->60 22 ipconfig.exe 1 18 18->22         started        signatures11 process12 file13 36 C:\Users\user\AppData\...\J4Llogrv.ini, data 22->36 dropped 38 C:\Users\user\AppData\...\J4Llogri.ini, data 22->38 dropped 62 Detected FormBook malware 22->62 64 Creates an undocumented autostart registry key 22->64 66 Tries to steal Mail credentials (via file access) 22->66 68 4 other signatures 22->68 26 cmd.exe 2 22->26         started        30 cmd.exe 1 22->30         started        signatures14 process15 file16 40 C:\Users\user\AppData\Local\Temp\DB1, SQLite 26->40 dropped 70 Tries to harvest and steal browser information (history, passwords, etc) 26->70 32 conhost.exe 26->32         started        34 conhost.exe 30->34         started        signatures17 process18
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a59693f90c55791c544845b00cd4a8e6333d83cc83c8d8be42a7b028af4098e0/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2020-10-19 16:49:25 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uwljh6imkv4ryvciiwyazvfi4yzt3a6mqpenrpscu6ycrl2atdqa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
netwirerc
Create hunting rule
Similar samples:
17de42648d49e21ed411c460fa0c805443e1898e21114beb8ea7301da3ee6b31
FormBook
2467572968320c67ea46c765d9cdae94d3887e44d7af7e29b88f1b0e51fa4c01
FormBook
2ead77594bc7d6fb376764fad896f830955a1ac70155c0f9feb42299f5c788a9
FormBook
4f90d42980450652ef19fe55ebea9e68683b4d29027900dcbeb5c26d298318fc
FormBook
54c0138d6a0dbd5967d7cf51eb753b29aa1fd72a85152285bd22347fa6654022
FormBook
72ec3dcd3d7a197c45c66605330968f86044d6a2ec37bf843e33b7f4668781f9
FormBook
a4f595a974ae8b5dc406b75aebfb8f6d44ac822b14c8ba0619f0416a55be3986
FormBook
c8d85cc6740894dd1333bfa06c37b334a4f341cefbd13ef8fa803732aa688c40
FormBook
d5b7a34c6294b2505366e81e4bcaa48943ddc338a1f78ae8f990e3dcf413182a
FormBook
d732985d24a02a21df8e93598ea0431ae1e9a89a1afcac240e758130517d625e
FormBook
+ 2'561 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/201020-2sjwcb62rx/
Behaviour
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Deletes itself
Formbook Payload
Formbook
Unpacked files
SH256 hash:
a59693f90c55791c544845b00cd4a8e6333d83cc83c8d8be42a7b028af4098e0
MD5 hash:
33de5150c627c6f5ba4787ad6899eb2a
SHA1 hash:
4900a6b2a0fba0845c79d9621a5d41b4d4451eca
Link:
https://www.unpac.me/results/7b37a51f-a598-4348-8f81-cdcacb572040/
SH256 hash:
b7517723988ba3dac83feeddf90a895e086e7c7cd554c2ae2a5a8ade4d15f3e1
MD5 hash:
bd3ffcdeb03f995243c62a679c97adea
SHA1 hash:
0830e2b2d441470eebde0eb974d84960b8bd06fc
Link:
https://www.unpac.me/results/7b37a51f-a598-4348-8f81-cdcacb572040/
SH256 hash:
c77b8e0c86ae52d19d31d70bd7add6f85b3baee6f39250b06242344937bfa3df
MD5 hash:
9487f12add5f6c191b7ca4deb03c2ec7
SHA1 hash:
d1f2eb7aa9f799ac6ab4067dc3860fb0ba7bd73a
Link:
https://www.unpac.me/results/7b37a51f-a598-4348-8f81-cdcacb572040/
SH256 hash:
794583cd3354fcb78c26dfaa63d7f5e35c5bc5699bc6db03b427016424ca26e4
MD5 hash:
069f92a9097ccf845d479b1aec615708
SHA1 hash:
45f2081dae744b5ea5b3d32b4543e68f1e2500a2
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/7b37a51f-a598-4348-8f81-cdcacb572040/
Parent samples :
a59693f90c55791c544845b00cd4a8e6333d83cc83c8d8be42a7b028af4098e0
60e0625b9dc6a06473b96fd2972c145e71120d7d6a106713c76d7be4ccf75478
7b55f6fa510718db214cc578df054de13177b21eb20194b87f97c477ffc572d5
c63da2dca25d6d1c17fcfd8041424f2232878b734072ab55f1c31a6fa083a9fa
cab05c453ff61226526341a1ff169339c019e61fd894bcd82aac8599ea61ca7a
6f463e4599313c87551cfc529feb1b20b5eccc8f4fd20f66fafe580140e109f9
55aebdda73f158c6b5d24ec671226540690112f2b412f073deb173b932c7f6c3
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a59693f90c55791c544845b00cd4a8e6333d83cc83c8d8be42a7b028af4098e0

File information

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

Malspam

FormBook

zip f8a553f207854e50c4400a52e9ed9a08d68f95c96028e0ee79cdffaa00f2c72f

FormBook

Executable exe a59693f90c55791c544845b00cd4a8e6333d83cc83c8d8be42a7b028af4098e0

(this sample)

  
Dropped by
MD5 3d5c94eca2320d0241defbfb219483b0
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73371/
  
Dropped by
SHA256 f8a553f207854e50c4400a52e9ed9a08d68f95c96028e0ee79cdffaa00f2c72f

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