MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a1636ce0a135a44f0ca3b7a0b2f9ad5f2c681629714640dd99fb4452718f63d. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: 2a1636ce0a135a44f0ca3b7a0b2f9ad5f2c681629714640dd99fb4452718f63d
SHA3-384 hash: bbb1bb391ef8a8d71a7d595bfba6e879ad7d83719100bb15a4f1c6a8c7a9ffcffd290a07c27084fd1921b5951b82d29a
SHA1 hash: c69f0d6f90d90082abad17c6f97d6fe3f73156bc
MD5 hash: 8d52817a7fff91dce7122e3e04bb0975
humanhash: seventeen-bacon-eleven-fifteen
File name:o2rr878IsstdRoB.exe
Download: download sample
Signature Formbook
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File size:966'656 bytes
First seen:2022-11-06 08:17:55 UTC
Last seen:2022-11-07 14:28:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:BOg27toeMPVRSqUGI10zhEwxMFdQpdhlltYkWjL+ebYvn6wc4C8YoQlxtex:9aHMtYsFB2FM/tYkWX+ebYehvoQl
TLSH T16A25E00F0AE9061AD6AA3AB855E4E7F7A3DD9C40F817C34B17C9AE4BF847634C611394
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
o2rr878IsstdRoB.exe
Verdict:
Malicious activity
Analysis date:
2022-11-06 08:19:24 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/a2a7a16d-889d-4607-9d90-41c9ce19a0b7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/329380/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.46355.7475.9494.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Launching the process to change network settings
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/63676dbb775605b3a4f3c2c0/reports/bc94dbf7-383b-46d9-b17e-9b208d76866e/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/690947c0-9c2f-47e4-996d-c38facd5e203
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1106505
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
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)
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 739168 Sample: o2rr878IsstdRoB.exe Startdate: 06/11/2022 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for URL or domain 2->36 38 7 other signatures 2->38 8 o2rr878IsstdRoB.exe 3 2->8         started        process3 file4 24 C:\Users\user\...\o2rr878IsstdRoB.exe.log, ASCII 8->24 dropped 52 Injects a PE file into a foreign processes 8->52 12 o2rr878IsstdRoB.exe 8->12         started        15 o2rr878IsstdRoB.exe 8->15         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 12->54 56 Maps a DLL or memory area into another process 12->56 58 Sample uses process hollowing technique 12->58 60 Queues an APC in another process (thread injection) 12->60 17 explorer.exe 12->17 injected process8 dnsIp9 26 www.takano-kk.net 103.141.97.43, 49709, 49710, 49711 VECTANTARTERIANetworksCorporationJP Japan 17->26 28 www.uaemetaversesummit.org 91.195.240.94, 49703, 49704, 49705 SEDO-ASDE Germany 17->28 30 2 other IPs or domains 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 42 Uses netsh to modify the Windows network and firewall settings 17->42 21 netsh.exe 13 17->21         started        signatures10 process11 signatures12 44 Tries to steal Mail credentials (via file / registry access) 21->44 46 Tries to harvest and steal browser information (history, passwords, etc) 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2a1636ce0a135a44f0ca3b7a0b2f9ad5f2c681629714640dd99fb4452718f63d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-11-05 08:29:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fildntqkcnnej4gkhn5awl422xzmnalcs4kgidozt62ekjyy6y6q._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:mtbj rat spyware stealer trojan
Link:
https://tria.ge/reports/221106-j69vfsdhck/
Behaviour
Modifies Internet Explorer settings
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
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/af49cbbb-4979-40ee-86c7-f9ce66cd485b
Unpacked files
SH256 hash:
9a6794615b3b19f8430ac3ab1f7b80f32f55212e0ccf99972876415e353ebec1
MD5 hash:
9ef10a781c5d5180e6dc01ca15e5a93f
SHA1 hash:
38aac92d01ff684e92f815e5f262d8683e1f00c8
Detections:
XLoader
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/e8d755ee-2718-41c9-8e7f-a7a46759bafd/
Parent samples :
6eafced8bff8b3551777975d1f71948eb04c4490fb2e165687f77f5182dc9a23
2a1636ce0a135a44f0ca3b7a0b2f9ad5f2c681629714640dd99fb4452718f63d
8a44adde0f3cad02f2cfd6f4694a8e4455acd991bbe25520cf6bafe0839ed09c
SH256 hash:
05adb54d01de743caeedda1c7cba2b856812ac5d30795d9ae79538c327087180
MD5 hash:
58c069966b25c7f5ada9044325a82c39
SHA1 hash:
8336b647bd774147a6af1954003e85544e1b5d20
Link:
https://www.unpac.me/results/e8d755ee-2718-41c9-8e7f-a7a46759bafd/
SH256 hash:
37e5ba7318e001686c29c3105c2f93e047168015dbc71b45fbeaef841ce99581
MD5 hash:
d5327fff727679f84274c9811041eedb
SHA1 hash:
b48aa5edd37a321388a7eb4b0406c6e9263a7bf1
Link:
https://www.unpac.me/results/e8d755ee-2718-41c9-8e7f-a7a46759bafd/
SH256 hash:
cb93f83afbc8ae369b6c17b3134bf77a84c8f42815ecac316631d025bf2d92a6
MD5 hash:
50f675a8575ff7a16a94c120922d9e01
SHA1 hash:
6fb0b87a5ddf700d4f05e5234079cb3da3e7916b
Link:
https://www.unpac.me/results/e8d755ee-2718-41c9-8e7f-a7a46759bafd/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/e8d755ee-2718-41c9-8e7f-a7a46759bafd/
SH256 hash:
8354a7ad0499febdd288542828ad0355dcb7054c0c518266208e571c5122b0c6
MD5 hash:
6bfc7ce9ec7891d9d8494454332099b5
SHA1 hash:
34fc8cebba035e2cc6d27d636f9655949080bf8e
Link:
https://www.unpac.me/results/e8d755ee-2718-41c9-8e7f-a7a46759bafd/
SH256 hash:
2a1636ce0a135a44f0ca3b7a0b2f9ad5f2c681629714640dd99fb4452718f63d
MD5 hash:
8d52817a7fff91dce7122e3e04bb0975
SHA1 hash:
c69f0d6f90d90082abad17c6f97d6fe3f73156bc
Link:
https://www.unpac.me/results/e8d755ee-2718-41c9-8e7f-a7a46759bafd/
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/2a1636ce0a135a44f0ca3b7a0b2f9ad5f2c681629714640dd99fb4452718f63d

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 2a1636ce0a135a44f0ca3b7a0b2f9ad5f2c681629714640dd99fb4452718f63d

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/329380/

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