zloader | bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171

Analysis

max time kernel
482s
max time network
485s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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

Processes:

msiexec.exe

flow	pid	process
8	4456	msiexec.exe
9	4456	msiexec.exe
10	4456	msiexec.exe
11	4456	msiexec.exe
12	4456	msiexec.exe
42	4456	msiexec.exe
43	4456	msiexec.exe
44	4456	msiexec.exe
45	4456	msiexec.exe
46	4456	msiexec.exe
50	4456	msiexec.exe
51	4456	msiexec.exe
52	4456	msiexec.exe
53	4456	msiexec.exe
54	4456	msiexec.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Duigidid = "C:\\Users\\Admin\\AppData\\Roaming\\Hoogc\\dyobice.exe"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe

description	pid	process	target process
PID 5040 set thread context of 4456	5040	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 4456 msiexec.exe
Token: SeSecurityPrivilege 4456 msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	4456	msiexec.exe
Token: SeSecurityPrivilege	4456	msiexec.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe

description	pid	process	target process
PID 5040 wrote to memory of 4456	5040	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	msiexec.exe
PID 5040 wrote to memory of 4456	5040	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	msiexec.exe
PID 5040 wrote to memory of 4456	5040	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	msiexec.exe
PID 5040 wrote to memory of 4456	5040	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	msiexec.exe
PID 5040 wrote to memory of 4456	5040	bd882e2eefd0145ff169d868c1815df272f84a5ad1e501cfa5c3336839774171_unpacked.exe	msiexec.exe

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:5040

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
2⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:4456

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4456-132-0x0000000000000000-mapping.dmp

Download
memory/4456-133-0x00000000009B0000-0x00000000009D2000-memory.dmp

Filesize
136KB

Download
memory/4456-134-0x00000000009B0000-0x00000000009D2000-memory.dmp

Filesize
136KB

Download
memory/4456-135-0x00000000009B0000-0x00000000009D2000-memory.dmp

Filesize
136KB

Download