MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2539269c2b9200d7baed9f0dfc25b59fd4713a641d79fd9bd13272c7e1296ca. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2539269c2b9200d7baed9f0dfc25b59fd4713a641d79fd9bd13272c7e1296ca
SHA3-384 hash: 57c9b1dd78513d089a523eb187c6d95edd22ca21b9598fca2622cd1b3fea03145f85f17837f855d8a69b347957d6965a
SHA1 hash: 23c567c3d934ea81a26771da855f6815d9483457
MD5 hash: cc92dedec89f09b08729784048f1060b
humanhash: helium-twenty-three-muppet
File name:cc92dedec89f09b08729784048f1060b
Download: download sample
Signature Formbook
Create hunting rule
File size:769'024 bytes
First seen:2021-10-15 08:15:39 UTC
Last seen:2021-10-15 09:51:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f5ffba271bfb9624023f7853a89e38a4 (2 x RemcosRAT, 1 x Formbook)
ssdeep 12288:bCF4Dqt0bJMifjeHRcPF7KyiNUZci+BfZ8fQO:eiVbJMifjQ0JiNUZc/Z8I
Threatray 8'937 similar samples on MalwareBazaar
TLSH T124F46D529EBCD435CAA1693DCD1F6398671E7E103E24543B3AD23E0EDA78790B52D342
File icon (PE):PE icon
dhash icon fedcbf4d750f4c4c (5 x RemcosRAT, 2 x Formbook, 1 x AveMariaRAT)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
101421KSM.xlsx
Verdict:
Malicious activity
Analysis date:
2021-10-15 07:12:32 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/c9eb5b61-3ccc-4a02-8411-29d072f35332

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/197707/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.23812.27582.13825.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Modifying an executable file
Launching the default Windows debugger (dwwin.exe)
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
67%
Tags:
formbook keylogger
Link:
https://www.filescan.io/uploads/616938c5fd35fe780c428066/reports/62dfe350-be1d-4c47-a1a8-0bc020a94cc9/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/c0a93629-c882-4421-9577-8e663037efb6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/871033
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Found malware configuration
Injects a PE file into a foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Execution from Suspicious Folder
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 virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 503462 Sample: FS5ObHHag7 Startdate: 15/10/2021 Architecture: WINDOWS Score: 100 39 www.spiegelverwarming.store 2->39 41 spiegelverwarming.store 2->41 43 www.oemlift.com 2->43 61 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 6 other signatures 2->67 10 FS5ObHHag7.exe 1 17 2->10         started        signatures3 process4 dnsIp5 57 cdn.discordapp.com 162.159.133.233, 443, 49753, 49756 CLOUDFLARENETUS United States 10->57 37 C:\Users\Public\Libraries\...\Dkymiyh.exe, PE32 10->37 dropped 89 Writes to foreign memory regions 10->89 91 Allocates memory in foreign processes 10->91 93 Creates a thread in another existing process (thread injection) 10->93 95 Injects a PE file into a foreign processes 10->95 15 mobsync.exe 10->15         started        file6 signatures7 process8 signatures9 97 Modifies the context of a thread in another process (thread injection) 15->97 99 Maps a DLL or memory area into another process 15->99 101 Sample uses process hollowing technique 15->101 103 2 other signatures 15->103 18 explorer.exe 4 2 15->18 injected process10 dnsIp11 45 austinsv.net 70.40.216.156, 49835, 80 UNIFIEDLAYER-AS-1US United States 18->45 47 www.dingyiemail.com 23.27.137.78, 49822, 80 EGIHOSTINGUS United States 18->47 49 7 other IPs or domains 18->49 69 System process connects to network (likely due to code injection or exploit) 18->69 22 Dkymiyh.exe 13 18->22         started        26 Dkymiyh.exe 14 18->26         started        28 cmd.exe 18->28         started        30 autochk.exe 18->30         started        signatures12 process13 dnsIp14 51 cdn.discordapp.com 22->51 71 Antivirus detection for dropped file 22->71 73 Multi AV Scanner detection for dropped file 22->73 75 Writes to foreign memory regions 22->75 32 logagent.exe 22->32         started        53 192.168.2.1 unknown unknown 26->53 55 cdn.discordapp.com 26->55 77 Allocates memory in foreign processes 26->77 79 Creates a thread in another existing process (thread injection) 26->79 81 Injects a PE file into a foreign processes 26->81 35 mobsync.exe 26->35         started        83 Modifies the context of a thread in another process (thread injection) 28->83 85 Maps a DLL or memory area into another process 28->85 87 Tries to detect virtualization through RDTSC time measurements 28->87 signatures15 process16 signatures17 59 Tries to detect virtualization through RDTSC time measurements 32->59
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2539269c2b9200d7baed9f0dfc25b59fd4713a641d79fd9bd13272c7e1296ca/
Threat name:
Win32.Downloader.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-10-15 08:16:07 UTC
AV detection:
18 of 45 (40.00%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ujjze2ocxeqa265o3hyn7qs3lh6uoe5gihlz7wn5cmtsy7qss3fa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5c175aad872d219fa23de0c83ea085fbdca8d76601167089b4e55ee66d520276
Formbook
86efd34020073e8fcdb31a794973b6a63ebef864684e304edc98d435ffa75016
Formbook
96a54086e0d1667ed27dacd61ce88129d2ae1236718babe4ee5b3054385cc215
Formbook
99cdf3421923232c160c5075af3bf8620df65bd59cf99cc341f17a58e1eeb4f2
Formbook
f5447c22561c0692e385ef3c0ef0ed84d4ce35042f0839bddd7de9aeaa1f777a
Formbook
f79690a1d55d2a07ff407ca6a7e74dfc8097d9c63d6fa59adc2e03c73d39290b
Formbook
ff577215d4aaa29ae63860167282ceeb0a703daadfdaef2155102500c269caa2
Formbook
+ 8'927 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:scb0 loader persistence rat
Link:
https://tria.ge/reports/211015-j555waafg9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.llaa11.xyz/scb0/
Unpacked files
SH256 hash:
2168c90f136c943d22bbd8ea5607e6527b4c75e26290b69ae9a2badbd98e7e62
MD5 hash:
deb7ce24d959a4386122ba3975ba00d5
SHA1 hash:
33497ef7b475019bfcf30f81dd528410134e781c
Link:
https://www.unpac.me/results/1c020726-b9ae-4d95-9279-4a0e9398c41c/
SH256 hash:
18d5f2bb4c00c8e6fb62f43bc3878c615b600ec26bc25b98204cc2e945cd175a
MD5 hash:
b0d9d156b07f2199b3334fc6564c133d
SHA1 hash:
0c39614273b857121740e0142d1d9809de8bc41b
Detections:
win_temple_loader_w0
Create hunting rule
Link:
https://www.unpac.me/results/1c020726-b9ae-4d95-9279-4a0e9398c41c/
Parent samples :
b400601e35e72a20ca4a0fb19af7a93ddeddcd568674232cabb6c1e05ce4fd07
a643235802bd118331000b4a251952815382078dd0aaaded76e4a8890bbac5f6
33b01cf0eb422d872201670e34b732f76c980ae7ccb016068438272ed426a50b
fe6bd626fd98e3c0e4a2c350e5d927398e22e7731e7c2e1f31bc02181735c4e0
a97b00620e1e8ef9ef5c5f922f5b40ecf698504402d3e14979701c330bef7b56
90e1eac40edda005fffadbb1d16c652d16e685f8f4cf7375eb6ac928222c3a1c
1e54beecbd654f17bab2c6f883ea089943d68ae3e49aaea079182173dc203297
a0703367806de16bac9c75c016780c0bf3b1d8c21cf7f51b6a47b6a1aba74999
1ed62fd139d5efe1cb2650f52cf405d615dc19dae62744df9fb364cd1970a4bc
ffb6236e6dd03ba2599326f3d83d2ffabf8ab18902f1865aa0a68f1881e31978
99cdf3421923232c160c5075af3bf8620df65bd59cf99cc341f17a58e1eeb4f2
8f1eefd14608fae865576d9f7a24be116eb9d8dcebf89c954e2e645b06174c4e
f86258665b68d70e83397ac4ef17598c552b994dd13f26b8208c4d40b8e94816
ed78db064dfb4ae791498b2d08410a69bdad684ff709319d179c2383dd8e2f1c
3490cb5fd9a372722f95ed69c41e23d5cd274ce6b3c024ec1731962a380409d6
d86532a631143032da8dd4e4fd86cbaed87777ef2ede4a60377d534cb9ea7271
298d542746dfa4922dd5fbc8fab572be58447c9dbd1481c55bd2254bb275684f
ffb0bd5cf5a1716fa50f01a4b4fd98d396842c7c263d3ce03623748430b30a93
a2067e35b12b83ddae55145931870302de477b5ccce82a5e86ea7bf8e057d8d7
a2539269c2b9200d7baed9f0dfc25b59fd4713a641d79fd9bd13272c7e1296ca
0aff281c192e919ce8a4e2091a058aa3c8fab2379dd50d7dd7ac7217af4dc838
cc8b096d71a4734e17e6f1bcf10d9730e5a2b3ab15b7e89852a4cdd204563d29
1e24e03e9ffdbe39ca8d357d0130aff5c50f2ddd7b2f613ab9dc01f02d0527d3
f60b6dfcaf466a9cf6b7831fcd74abc70efc16aec11d3b38fdbc7562003ba61b
67c445ff181fcaa6b46a1d1af78a9df1ac413593f29561e4fa43059c7ed85ace
SH256 hash:
a2539269c2b9200d7baed9f0dfc25b59fd4713a641d79fd9bd13272c7e1296ca
MD5 hash:
cc92dedec89f09b08729784048f1060b
SHA1 hash:
23c567c3d934ea81a26771da855f6815d9483457
Link:
https://www.unpac.me/results/1c020726-b9ae-4d95-9279-4a0e9398c41c/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a2539269c2b9/report/overview.html
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/a2539269c2b9200d7baed9f0dfc25b59fd4713a641d79fd9bd13272c7e1296ca

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_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
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.

Web download

Formbook

Executable exe a2539269c2b9200d7baed9f0dfc25b59fd4713a641d79fd9bd13272c7e1296ca

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1679930/
Cape
Cape
https://www.capesandbox.com/analysis/197707/

Comments


Avatar
zbet commented on 2021-10-15 08:15:40 UTC

url : hxxp://192.3.222.242/000200/vbc.exe