zloader | bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171

Analysis

max time kernel
477s
max time network
481s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
27-10-2022 06:35

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General

Target

bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe
Size

119KB
MD5

8af1f18ed86898a92c5e20d9d3abaf7a
SHA1

e789544575c2a0a74524ab50fc47d348af876093
SHA256

bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171
SHA512

ac12219195622d65790a63c405a32c0b9f38fe74e7492cb7894d934b84792e22c25ba3453cdcd7fc9e228190082b0e132bce167e0e6e4c10aeea804ac2a168c2
SSDEEP

3072:7LnLvYuSYOkboKxL35ouXgkfMVtViEoW:XLYuSYIKxDwLj

Score

10^/10

zloader botnet persistence trojan

Malware Config

Extracted

Family

zloader

Attributes

build_id
3238765

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Blocklisted process makes network request 15 IoCs

flow	pid	Process
3	1388	msiexec.exe
4	1388	msiexec.exe
6	1388	msiexec.exe
7	1388	msiexec.exe
8	1388	msiexec.exe
9	1388	msiexec.exe
10	1388	msiexec.exe
11	1388	msiexec.exe
12	1388	msiexec.exe
13	1388	msiexec.exe
14	1388	msiexec.exe
15	1388	msiexec.exe
16	1388	msiexec.exe
17	1388	msiexec.exe
18	1388	msiexec.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Feadfaa = "C:\\Users\\Admin\\AppData\\Roaming\\Dideo\\ybegdi.exe"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1048 set thread context of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1388	msiexec.exe
Token: SeSecurityPrivilege	1388	msiexec.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27
PID 1048 wrote to memory of 1388	1048	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	27

C:\Users\Admin\AppData\Local\Temp\bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe
"C:\Users\Admin\AppData\Local\Temp\bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\SysWOW64\msiexec.exe
  msiexec.exe
  2⤵
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:1388

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1048-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1388-55-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/1388-57-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/1388-60-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/1388-61-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download