MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5d296940aa22ec9c8d591baa8aad491e9b1880c4585da46de772ebe9209b6d0. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5d296940aa22ec9c8d591baa8aad491e9b1880c4585da46de772ebe9209b6d0
SHA3-384 hash: 7661b0c6248a2dd4347503c133361efee9c694a7c0a641b9afcc66bf9a25e8665d9ae86ed7612e8468348fe68388cb49
SHA1 hash: 7dd42167f64504e943067fc8476cab6b41195dd1
MD5 hash: e4eaf5f69072c771319ccde3255873c6
humanhash: edward-kilo-magnesium-shade
File name:lrx2NdZ3mavijH3.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:971'776 bytes
First seen:2021-02-04 13:21:36 UTC
Last seen:2021-02-17 19:08:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'598 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:HKi19rlipAhZWM2cwLBKPgr1JgmKJCuDXEPMQMdV7EUbOFzq5QJp4x:HKi19Rewg/8Pgr1WmuDXXQ6xzb+zqJx
Threatray 3'732 similar samples on MalwareBazaar
TLSH 7D25BE13335CEB5CD13D57797074823093F5AF13AA25C69EBED1ECDE2871A894A1A2C2
Reporter GovCERT_CH
Tags:FormBook

Intelligence

File Origin
# of uploads :
26
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
lrx2NdZ3mavijH3.exe
Verdict:
Malicious activity
Analysis date:
2021-02-04 13:22:43 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/35ce97c2-2cfa-44ab-85fc-839082bd56b3

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/115629/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Creating a file
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/599288
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 348676 Sample: lrx2NdZ3mavijH3.exe Startdate: 04/02/2021 Architecture: WINDOWS Score: 100 31 www.bhushankapase.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 7 other signatures 2->45 11 lrx2NdZ3mavijH3.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\lrx2NdZ3mavijH3.exe.log, ASCII 11->29 dropped 55 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->55 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 lrx2NdZ3mavijH3.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 ucisqmx.com 102.134.56.216, 49742, 49763, 80 sun-asnSC South Africa 18->33 35 www.mingjiuhb.com 156.241.53.159, 49746, 49767, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 18->35 37 17 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 explorer.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a5d296940aa22ec9c8d591baa8aad491e9b1880c4585da46de772ebe9209b6d0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-04 01:53:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
37
AV detection:
33 of 47 (70.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uxjjnfakuixmtsgvsg5krkwushu3dcamiwc5urw6o4xl5eqjw3ia._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
072fc358e0ce81c1ac308188a28e224545c37f5c62d6ce4456a453173cbc7560
Formbook
17560799b5c280bc9c03210bc5173826c9de6ea7d488f5ead4441933872ea690
Formbook
17feaeb1ed83aa5acfcf5b6807ad231530fb44c2e7f5a69552b68ca4fe14b941
Formbook
180444e71cfbd639cea07e4cdc28099a444839f5ad3eb024b87dc9664fdfd5ec
Formbook
25f49539277650096e232f0d3e11788d7099d0bb7f23e87d6fcd852e3384b640
Formbook
3926f5e7d90bf6eb1f4b3cc3d38570efd19438e5c5d9fa8b02a8a79fdad8ce4f
Formbook
486035f5d7f5cffc2c03aee2ecb06252449dc9330cae4b8fb35662010f59eab8
Formbook
57f785b182afbd719ca9e62527729b3d571b8218a38d24c22ef335df7654ce11
Formbook
6c595ae0af40886a5d0e907120894e72fadef005a527230b5c28a3e2767789f1
Formbook
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf
Formbook
+ 3'722 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader evasion loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210204-awj741kv56/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Deletes itself
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.smithsreddogranch.com/oge8/
Unpacked files
SH256 hash:
656316841174df62d9e2b1aa0cd6023671e7dc3acb9e9d3c32379847dbd857e3
MD5 hash:
2ec1f817eb5e680712e7bbba91ab8bfa
SHA1 hash:
66555f6060fa1e125fa9e0d195434c634ce74827
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/19e03c84-a644-474e-98c5-ea376ec9d639/
Parent samples :
25f49539277650096e232f0d3e11788d7099d0bb7f23e87d6fcd852e3384b640
a5d296940aa22ec9c8d591baa8aad491e9b1880c4585da46de772ebe9209b6d0
SH256 hash:
d88ce0bc26b39ca3f47c021e03f92d8c68c6e7df3f6c56411807f4751a4a078c
MD5 hash:
00e2827574fd1ac6ee1112c45fa997b2
SHA1 hash:
9c430a3389b61944eb6bead5ae438a182c347c09
Link:
https://www.unpac.me/results/19e03c84-a644-474e-98c5-ea376ec9d639/
SH256 hash:
97af4a50911946b4b5e0803b57a0f0d7b0d0b4dcf930b48f92befbefd74c6804
MD5 hash:
46e4fcdf0903f9ae18ec056d3aebf544
SHA1 hash:
cfdd1dbbdc94768756f8269f8cf071ab82b6edfc
Link:
https://www.unpac.me/results/19e03c84-a644-474e-98c5-ea376ec9d639/
SH256 hash:
a5d296940aa22ec9c8d591baa8aad491e9b1880c4585da46de772ebe9209b6d0
MD5 hash:
e4eaf5f69072c771319ccde3255873c6
SHA1 hash:
7dd42167f64504e943067fc8476cab6b41195dd1
Link:
https://www.unpac.me/results/19e03c84-a644-474e-98c5-ea376ec9d639/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a5d296940aa22ec9c8d591baa8aad491e9b1880c4585da46de772ebe9209b6d0

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

zip 4171e3d7cb0a55439dfd8709bac7b42bf2faaba42033c6d73fbfbc9e9ffc265e

Formbook

Executable exe a5d296940aa22ec9c8d591baa8aad491e9b1880c4585da46de772ebe9209b6d0

(this sample)

  
Dropped by
MD5 b1e6e5a4dfd438801244650112915cc6
  
Dropped by
SHA256 4171e3d7cb0a55439dfd8709bac7b42bf2faaba42033c6d73fbfbc9e9ffc265e
  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/115629/

Comments