zloader | 384f3719ba4fbcf355cc206e27f3bfca94e7bf14dd928de62ab5f74de90df34a

Analysis

max time kernel
581s
max time network
582s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27-10-2022 06:35

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General

Target

f1bdd2bcbaf40bb99224fa293edc1581fd124da63c035657918877901d79bed8_unpacked.dll
Size

144KB
MD5

eb8439d5ee379f19d25c2445d28e135a
SHA1

5426510acb07efc464c47bbe0cc413489365a3d9
SHA256

384f3719ba4fbcf355cc206e27f3bfca94e7bf14dd928de62ab5f74de90df34a
SHA512

5bbda761ff6c0286d346dd0fda5df2abeeb6ffb81149d0537db969feb682658dc1e5a75bb1d09a13398b26fee4163ace7d35bbd69196628b3daef53c0efdc982
SSDEEP

3072:c2kHDNNqo9hPNER+/2p1Ludye/w4FeNqEKJ7exog/Dt5eFSbvth90:cZHRNNbuc2HLxrgL7exx5ecv

Score

10^/10

zloader botnet persistence trojan

Malware Config

Extracted

Family

zloader

Attributes

build_id
49

Signatures

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

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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Bohaga = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Gyag\\uhagge.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 1108 set thread context of 968 1108 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 968 msiexec.exe
Token: SeSecurityPrivilege 968 msiexec.exe

description	pid	process	target process
PID 1108 set thread context of 968	1108	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	968	msiexec.exe
Token: SeSecurityPrivilege	968	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 1836 wrote to memory of 1108	1836	regsvr32.exe	regsvr32.exe
PID 1836 wrote to memory of 1108	1836	regsvr32.exe	regsvr32.exe
PID 1836 wrote to memory of 1108	1836	regsvr32.exe	regsvr32.exe
PID 1836 wrote to memory of 1108	1836	regsvr32.exe	regsvr32.exe
PID 1836 wrote to memory of 1108	1836	regsvr32.exe	regsvr32.exe
PID 1836 wrote to memory of 1108	1836	regsvr32.exe	regsvr32.exe
PID 1836 wrote to memory of 1108	1836	regsvr32.exe	regsvr32.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe
PID 1108 wrote to memory of 968	1108	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f1bdd2bcbaf40bb99224fa293edc1581fd124da63c035657918877901d79bed8_unpacked.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1836

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\f1bdd2bcbaf40bb99224fa293edc1581fd124da63c035657918877901d79bed8_unpacked.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:968

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/968-57-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/968-59-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/968-60-0x0000000000000000-mapping.dmp

Download
memory/968-62-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/968-63-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/1108-55-0x0000000000000000-mapping.dmp

Download
memory/1108-56-0x0000000075771000-0x0000000075773000-memory.dmp

Filesize
8KB

Download
memory/1836-54-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

Filesize
8KB

Download