003ed9ebfa425e560bd84e6fae2bef95cf9ad6670026d5a3848df101fb64445a

Analysis

max time kernel
147s
max time network
141s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
18-08-2023 12:38

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General

Target

Hephthemimer.exe
Size

574KB
MD5

c3bf434b4b051f476a862763203b92c0
SHA1

4943db2de1a4a062ef36d3ef0c4dd6fb260030d8
SHA256

003ed9ebfa425e560bd84e6fae2bef95cf9ad6670026d5a3848df101fb64445a
SHA512

9274b014d16b877f52301ecb3146f0be206607e82eafc57ad245d943b48c726d70330a8381b0aebc97fb017134702d5f211fe9f6bb927d9f96d6a6a6917f7412
SSDEEP

12288:cBXPB4M9Urtx7mBaGY6u25aQ+Sb6f57Q3e:u4M9UmBaC5Tqe

Score

7^/10

Malware Config

Signatures

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	Hephthemimer.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	Hephthemimer.exe

Loads dropped DLL 1 IoCs

pid	Process
2040	Hephthemimer.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2284	Hephthemimer.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2040	Hephthemimer.exe
2284	Hephthemimer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 2284	2040	Hephthemimer.exe	30

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2284	Hephthemimer.exe
2284	Hephthemimer.exe
2284	Hephthemimer.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2040	Hephthemimer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2284	Hephthemimer.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2284	2040	Hephthemimer.exe	30
PID 2040 wrote to memory of 2284	2040	Hephthemimer.exe	30
PID 2040 wrote to memory of 2284	2040	Hephthemimer.exe	30
PID 2040 wrote to memory of 2284	2040	Hephthemimer.exe	30
PID 2040 wrote to memory of 2284	2040	Hephthemimer.exe	30
PID 2040 wrote to memory of 2284	2040	Hephthemimer.exe	30

C:\Users\Admin\AppData\Local\Temp\Hephthemimer.exe
"C:\Users\Admin\AppData\Local\Temp\Hephthemimer.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\Hephthemimer.exe
  "C:\Users\Admin\AppData\Local\Temp\Hephthemimer.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nst82B8.tmp\System.dll

Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
memory/2040-62-0x00000000777C0000-0x0000000077969000-memory.dmp

Filesize
1.7MB

Download
memory/2040-63-0x00000000779B0000-0x0000000077A86000-memory.dmp

Filesize
856KB

Download
memory/2040-64-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download
memory/2284-65-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2284-66-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2284-67-0x00000000777C0000-0x0000000077969000-memory.dmp

Filesize
1.7MB

Download
memory/2284-84-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2284-89-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2284-90-0x0000000001470000-0x0000000007371000-memory.dmp

Filesize
95.0MB

Download
memory/2284-91-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2284-92-0x0000000037720000-0x0000000037A23000-memory.dmp

Filesize
3.0MB

Download
memory/2284-93-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download