MALICIOUS — 4c3b87bdc124bdce1e7ab07102f92cd64dc24a3ad9dd81c5a50d3ec8a18b0256

MALICIOUS — 4c3b87bdc124bdce1e7ab07102f92cd64dc24a3ad9dd81c5a50d3ec8a18b0256 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Changeup family. 5 of 56 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

SHA-256: 4c3b87bdc124bdce1e7ab07102f92cd64dc24a3ad9dd81c5a50d3ec8a18b0256
SHA-1: f9809477f15acc4815f0f56256a63663b795852b
MD5: 0f9a2b1bbc51702861012902ed5b65b6
imphash: 446f0aabccc2b063b4bb6671b1bfa4a3
ssdeep: 1536:011385upCoQqI6vmJgGMct4V0TtnYmy1DZeKoT:5krU6vh64VunBy1UT
TLSH: T1333FC6C11D778106F9B2B1073D845C7D958E056AE92E68A6A38F863F08E707B707216F
Submitted as: 4c3b87bdc124bdce1e7ab07102f92cd64dc24a3ad9dd81c5a50d3ec8a18b0256
File type: pe · Size: 163840 bytes
Verdict: malicious (100/100) · Family: Changeup

Detections (5 of 56 engines)

ClamAV (daily): Win.Trojan.Changeup-6169544-0
Microsoft Defender: Worm:Win32/Vobfus.FQ
Emsisoft (Emergency Kit): Gen:Variant.Barys.5430
Trellix Stinger (McAfee): VBObfus.ek
Kaspersky (KVRT): Worm.Win32.WBNA.ipa

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 13 weighted signals:

ClamAV (daily) flagged Win.Trojan.Changeup-6169544-0 (rule Win.Trojan.Changeup-6169544-0) - engine signal, weight 0.90, confidence 0.95
1 behavioral detection(s) across 1 rule(s): Registry Run Key Persistence [high] (rule tl-run-key) - dynamic signal, weight 0.60, confidence 0.90
Microsoft Defender flagged Worm:Win32/Vobfus.FQ (rule Worm:Win32/Vobfus.FQ) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Variant.Barys.5430 (rule Gen:Variant.Barys.5430) - engine signal, weight 0.55, confidence 0.85
Trellix Stinger (McAfee) flagged VBObfus.ek (rule VBObfus.ek) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Worm.Win32.WBNA.ipa (rule Worm.Win32.WBNA.ipa) - engine signal, weight 0.55, confidence 0.85
Observed at runtime: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
Contacted 3 external host(s) and 6 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Memory forensics: 4 finding(s) elsewhere in the guest, not attributed to this sample, e.g. process hidden from a listing (rule windows.psxview.PsXView) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

47001 behavior events · 3 ATT&CK techniques · 4 dropped files.

Dropped files

C:\Users\analyst\xoapean.exe - dc042f1b7b7a90a98513edadf397682253507cf97806e27f6f9bf1c68cb05dbd
b606be6659db5691a84c083b670489d13734887c92e7de839564ea9ed720e396 - b606be6659db5691a84c083b670489d13734887c92e7de839564ea9ed720e396
90bf7e08f04713fd7b32bb39557498d33c9d38b3d519675e9b1e24c50d644a3d - 90bf7e08f04713fd7b32bb39557498d33c9d38b3d519675e9b1e24c50d644a3d
136550723fa78b5cefb7729671ec9d0b536565a8a4e0944fbc6f6fecee4b3220 - 136550723fa78b5cefb7729671ec9d0b536565a8a4e0944fbc6f6fecee4b3220

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl

Embedded domains

www.vbfx.net
www.planetsourcecode.com
aol.com
ns1.chopzones.com
ns1.chopzones.net
ns1.chopzones.org
ns1.chopzones.biz
ns1.chopzones.info

Embedded IP addresses

4.150.223.115
52.253.84.76
4.230.171.124
4.247.188.224
52.110.12.28
52.110.12.33
172.178.240.161
184.84.165.136
184.84.165.171
20.209.154.161
72.145.35.111
52.148.114.188
52.110.12.49
52.110.12.18

File paths

C:\Program
c:\windows\desktop\

More Changeup samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report