MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2b4bd5591c841097fc741cb221e713c790da54449204d4fbc64da153a8458a3. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: a2b4bd5591c841097fc741cb221e713c790da54449204d4fbc64da153a8458a3
SHA3-384 hash: 8aecde5565c95ee11ba9beb8cdfeb0b915270b6180df6fdf3b154d15781b2f149e832bbd2bb6f26e1e6609f1db17c7b9
SHA1 hash: 4ea37e9007fa60d8139b960e032c1b3781b1b644
MD5 hash: d35c1fe05ca0d548776e726234bdee2c
humanhash: violet-fifteen-zebra-gee
File name:payment copy202211001.exe
Download: download sample
Signature Formbook
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File size:1'064'448 bytes
First seen:2022-08-29 17:00:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:Nujq0AUj+MlSorofbgjhWirG0wAFFwXY+mzo3s:Q0MSYWbgjhWii3AFElmz
TLSH T11A359D3339EE521DF173AF712AF475B289AEBF332A06945D30D1474E0622A85DD811FA
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon ecec889ce6d8e8f0 (40 x Formbook, 21 x AgentTesla, 12 x SnakeKeylogger)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
478
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
payment copy202211001.exe
Verdict:
Malicious activity
Analysis date:
2022-08-29 17:02:11 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/98c19b0c-d708-48dc-9225-379c6190efdc

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/302301/
Detection(s):
SecuriteInfo.com.BackDoor.RatNET.2.5777.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/630cf09854eb989818e831b0/reports/ecc28ff5-1f5e-4b06-8401-d42794bf6bf4/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1926fddd-bd1b-440d-af7d-ab5c99c23b09
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1060030
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Initial sample is a PE file and has a suspicious name
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)
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
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 692547 Sample: payment copy202211001.exe Startdate: 29/08/2022 Architecture: WINDOWS Score: 100 31 www.abraith.com 2->31 37 Snort IDS alert for network traffic 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 9 other signatures 2->43 9 payment copy202211001.exe 3 2->9         started        signatures3 process4 file5 23 C:\Users\...\payment copy202211001.exe.log, ASCII 9->23 dropped 53 Injects a PE file into a foreign processes 9->53 13 payment copy202211001.exe 9->13         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 Queues an APC in another process (thread injection) 13->61 16 explorer.exe 13->16 injected process9 dnsIp10 25 www.fleetcsr.co.uk 81.17.18.198, 49712, 49713, 49714 PLI-ASCH Switzerland 16->25 27 saktiberinternet69.site 194.163.41.23, 49721, 49723, 49724 NEXINTO-DE Germany 16->27 29 4 other IPs or domains 16->29 33 System process connects to network (likely due to code injection or exploit) 16->33 35 Performs DNS queries to domains with low reputation 16->35 20 cmmon32.exe 13 16->20         started        signatures11 process12 signatures13 45 Tries to steal Mail credentials (via file / registry access) 20->45 47 Tries to harvest and steal browser information (history, passwords, etc) 20->47 49 Deletes itself after installation 20->49 51 2 other signatures 20->51
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/a2b4bd5591c841097fc741cb221e713c790da54449204d4fbc64da153a8458a3/
Threat name:
Win32.Spyware.SnakeLogger
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Status:
Malicious
First seen:
2022-08-29 14:10:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
34
AV detection:
20 of 39 (51.28%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uk2l2vmrzbaqs76hihfsehtrhr4q3jkejeqe2t54mtnbkouelcrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/220829-vhz6wsddh8/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Unpacked files
SH256 hash:
57daa3f65ba56636b1a1a6deb41de005f817d98f90213dd7fcb501bc50de9e0b
MD5 hash:
cd605ad4f5369ddd030b04957bb6cf40
SHA1 hash:
8f3e0e8db1208a241803fd2da734703fef802963
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/7602cb2c-62ef-4a81-8ff7-6c115767062e/
Parent samples :
a2b4bd5591c841097fc741cb221e713c790da54449204d4fbc64da153a8458a3
a2161a7d0675f94235710ab04b4324c454a76b8f3c0a30ea2ba3777e197dfcea
SH256 hash:
f14a7e76f8d02d3e00d29a57760fe5afe6b3412b9d970a32a2e0068e918ede25
MD5 hash:
8f49a08469554c290dffa0321b0eaccf
SHA1 hash:
4947f49ebee4aa4eff8ffbd9ff6d03db93bf2255
Link:
https://www.unpac.me/results/7602cb2c-62ef-4a81-8ff7-6c115767062e/
SH256 hash:
c45a3dae97e5e635a567df02635fe941af384f35cc993d4e52a57fa4f4026b3e
MD5 hash:
966c65a2893f62df72494272d810448f
SHA1 hash:
de82f765123b6ed954996603b663e9bac36acfb6
Link:
https://www.unpac.me/results/7602cb2c-62ef-4a81-8ff7-6c115767062e/
SH256 hash:
2fde745d953182ba9a58b0d2b421b0b4fbe6a000c2ddd733984c20c2ae7bfb74
MD5 hash:
66aae73e437922eeaba8865e41792646
SHA1 hash:
cb9ec2f2460040e41f96a36a7b4fcaeb664bc3b9
Link:
https://www.unpac.me/results/7602cb2c-62ef-4a81-8ff7-6c115767062e/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/7602cb2c-62ef-4a81-8ff7-6c115767062e/
SH256 hash:
35a0732e8bd6c6b50d780f461d656ea0e86e4cc74012bbbfea35031610b834ce
MD5 hash:
5e87b879279fceb6248d7c447dce2043
SHA1 hash:
10f1f5dece2d3adfb36bb06c24fd292aa3fe883a
Link:
https://www.unpac.me/results/7602cb2c-62ef-4a81-8ff7-6c115767062e/
SH256 hash:
a2b4bd5591c841097fc741cb221e713c790da54449204d4fbc64da153a8458a3
MD5 hash:
d35c1fe05ca0d548776e726234bdee2c
SHA1 hash:
4ea37e9007fa60d8139b960e032c1b3781b1b644
Link:
https://www.unpac.me/results/7602cb2c-62ef-4a81-8ff7-6c115767062e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/a2b4bd5591c841097fc741cb221e713c790da54449204d4fbc64da153a8458a3

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:meth_get_eip
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Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/302301/

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