MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f16f7da4670e165f0f978457775531b15cd2fb4c9e21b0a511eaf2e6771988e. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f16f7da4670e165f0f978457775531b15cd2fb4c9e21b0a511eaf2e6771988e
SHA3-384 hash: 5f27dab05d38054b0df4027a322a8ab66d86d3d452a918a76c396ca994d78e62209c2561ba7978ab247ba81579fe8cb7
SHA1 hash: fd051635f1261a208f8f0d2956b2bb8c4c3ef189
MD5 hash: 861999bb234bec600f29e9bb21ee7a7c
humanhash: single-low-lima-solar
File name:2109.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:232'979 bytes
First seen:2021-02-25 14:19:40 UTC
Last seen:2021-02-26 17:40:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ced282d9b261d1462772017fe2f6972b (127 x Formbook, 113 x GuLoader, 70 x RemcosRAT)
ssdeep 3072:5f1BDZ0kVB67Duw9AMc1bcTSahqXhKSY6Fa4yaSq/jNZPdzm9MPRiFhdqrJCi+1m:59X0GRghq4OFaop9lWM3oi2blKfXBFnx
Threatray 3'944 similar samples on MalwareBazaar
TLSH EA34128667F1D4F3CAA10633193B3A6B9BE5932120748B6B9BA44F083D735835B0D797
Reporter GovCERT_CH
Tags:FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
164
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2109.exe
Verdict:
Malicious activity
Analysis date:
2021-02-25 14:36:26 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/348d69e6-d4d6-42e4-9a0f-d9dd8911f473

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/119257/
Detection(s):
PUA.Win.Downloader.Soft32downloader-6691270-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser 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/618823
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Machine Learning detection for dropped file
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 dropped file
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 (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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 358416 Sample: 2109.exe Startdate: 25/02/2021 Architecture: WINDOWS Score: 100 38 www.zipdelta.com 2->38 40 www.grayfoxden.com 2->40 42 prod-sav-park-lb01-1919960993.us-east-2.elb.amazonaws.com 2->42 58 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 7 other signatures 2->64 12 2109.exe 11 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\Temp\tc2jd.dll, PE32 12->34 dropped 36 C:\Users\user\AppData\...\i44pryfzpk5hiz.exe, PE32 12->36 dropped 15 i44pryfzpk5hiz.exe 1 12->15         started        process6 signatures7 74 Detected unpacking (changes PE section rights) 15->74 76 Maps a DLL or memory area into another process 15->76 78 Tries to detect virtualization through RDTSC time measurements 15->78 18 i44pryfzpk5hiz.exe 15->18         started        21 conhost.exe 15->21         started        process8 signatures9 50 Modifies the context of a thread in another process (thread injection) 18->50 52 Maps a DLL or memory area into another process 18->52 54 Sample uses process hollowing technique 18->54 56 Queues an APC in another process (thread injection) 18->56 23 explorer.exe 18->23 injected process10 dnsIp11 44 r3dprojects.com 162.144.1.62, 49726, 80 UNIFIEDLAYER-AS-1US United States 23->44 46 www.r3dprojects.com 23->46 48 2 other IPs or domains 23->48 66 System process connects to network (likely due to code injection or exploit) 23->66 27 cmd.exe 23->27         started        signatures12 process13 signatures14 68 Modifies the context of a thread in another process (thread injection) 27->68 70 Maps a DLL or memory area into another process 27->70 72 Tries to detect virtualization through RDTSC time measurements 27->72 30 cmd.exe 1 27->30         started        process15 process16 32 conhost.exe 30->32         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4f16f7da4670e165f0f978457775531b15cd2fb4c9e21b0a511eaf2e6771988e/
Threat name:
Win32.Spyware.Artemis
Create hunting rule
Status:
Malicious
First seen:
2021-02-24 14:55:44 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j4lppwsgodqwl4hzpbcxo5ktdmk42l5uzhrbwcsrd2xs4z3rtcha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00723545fff6ce259e729f8f1f9c7129e0d667502f94ef137bbbd9642ced4cc0
Formbook
38acc90cd6d33b61b99cca8cf06781e1bd2ab8ffebc3a33e036eca36037d413b
Formbook
4d7785dcd99beca572613788bc8b0713ddda6da0c8df321b1402bc38e6880f88
Formbook
5d5d64a87a5d888443e8d7a25046922fa4a39fe5952a45635dd66321e616bb14
Formbook
720ffc99aa96c665aae27db46f776476c37ca113db207790579adfd81c73ad05
Formbook
8eb77ec70c44e86607e97ce926cdb4e0610a0199c348fa329dba50bef34d5fc1
Formbook
c1a40dbca9d28ac760447f501d812b82312be281ee699fdcc4a6a543077caa3d
Formbook
d8e0edf1cca3b6edefcd830e233131c593997b5bd4454891dc1b70614862f718
Formbook
e68f17cfe87742103150ca9abd6cc16581caa6e0e0243d03fae2c89c2609c974
Formbook
f09416ef7aaab2c43c62ef77bb69c005ec4a57d4051586f5e7d8571e74fee41c
Formbook
+ 3'934 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210225-th4tjjn81e/
Behaviour
Enumerates system info in registry
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.unitvn.com/krc/
Unpacked files
SH256 hash:
df1a174033123b25388d9e18ffaaee450a1b1823fa0e7b8eb5c7fa72f69edc1f
MD5 hash:
5c748f5122ee2a296257804d58900801
SHA1 hash:
9ef3d9c557b23beceaab5eabcd7e28c4eb7bd9e5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/2872167f-b875-460e-af69-bcd2cd831aa9/
Parent samples :
5c03cc9cabc0adbcdb1597650f9fc5dd5c3b338a0e8558887a02fbb3be8c34c4
59ce83a6f502ce8e4d717a387bebf425424a566eaa9e8c2c4a24fe864afc1679
4f16f7da4670e165f0f978457775531b15cd2fb4c9e21b0a511eaf2e6771988e
38272fb3fbcabee6980aeb4be9ae17147a7979dc415cb3cfbedc48cc298bbefa
SH256 hash:
83e70a9a3067a8deb5ec5e472a80d3e5f6d82f90c0b5067c973c3077e43d2ca1
MD5 hash:
2f1d8da9ad48cdefe35d05d56e02e453
SHA1 hash:
37fb5e77ebe2b30d021bc5a4021efd679de6dd49
Link:
https://www.unpac.me/results/2872167f-b875-460e-af69-bcd2cd831aa9/
SH256 hash:
5eb74ebb3b62340792a1cd397dc222d3a4e35e510e4b15caf9ff52fe64e9ff0c
MD5 hash:
d420d5e87b041665f1acf7271792c350
SHA1 hash:
441fcf2519baf52518ffb2124d2c6c56cc760872
Link:
https://www.unpac.me/results/2872167f-b875-460e-af69-bcd2cd831aa9/
SH256 hash:
4f16f7da4670e165f0f978457775531b15cd2fb4c9e21b0a511eaf2e6771988e
MD5 hash:
861999bb234bec600f29e9bb21ee7a7c
SHA1 hash:
fd051635f1261a208f8f0d2956b2bb8c4c3ef189
Link:
https://www.unpac.me/results/2872167f-b875-460e-af69-bcd2cd831aa9/
Please note that we are no longer able to provide a coverage score for Virus Total.

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_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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 ca73dbdd5e448a5dd2c4cad8224ef9923467b946ceec0e7d7393c5baba070d00

Formbook

Executable exe 4f16f7da4670e165f0f978457775531b15cd2fb4c9e21b0a511eaf2e6771988e

(this sample)

  
Dropped by
MD5 955aa447603ce05e22dbd420ae8b7e4a
  
Dropped by
SHA256 ca73dbdd5e448a5dd2c4cad8224ef9923467b946ceec0e7d7393c5baba070d00
  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/119257/

Comments