xloader | d9953c25aba720427a7122609ba2ec3ed42861e9acd631dc5f2a0deb3d8508b5

General

Target

tmp.exe
Size

616KB
MD5

c6d0aca39ecb129499f77720fbaa92b1
SHA1

e5ea01305c8447e01d78733d7982b79ac45b6581
SHA256

d9953c25aba720427a7122609ba2ec3ed42861e9acd631dc5f2a0deb3d8508b5
SHA512

3416a1b0696a7d0ee59d4289f9a243c93fb1887753b2a06c9b3e038d46739ba62365940f155aec94538aa8a8ef534126b3ded4ae8ca8e3603fcfac0b8ba2e5fd

Score

10^/10

xloader nn40 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.8

Campaign

nn40

Decoy

LYAg0yANOGEAGeaFOrA/

MQWuERZplP+VZy/uszI=

CF0oDN0JimIaGy/uszI=

ltJnyC+ReohYaiTvj1qbEA==

B9OkgdctVKBAFjSUaw==

sbDVwSZVVqVB11/deow8GA==

v1gHDe0pzno=

i+/0n2vHUfGPR98k77tukZ90MQ==

SUtCnbS96Qm21g==

8X9qzyt1dpAo31jXrXfKb49fBPY=

5KlPxqHzSstuFjSUaw==

0r/Kesv/zuanroxvNQW0Gm8=

FFgS7kfPYAqpdhhgRgnBJHY=

LgusAHrkrIoWr0FWIe2o/04UXPw=

vBq9Gvxa9wbKbS/uszI=

Z+q6HAZNNeqwwQ==

wbS4fMb06SjU5Kbseow8GA==

1mZEuZvJ/m0L9bof56PkkZ90MQ==

JCJIM74lHk/o+tiFOrA/

d14FrM8rGEgIzVkT67+3XaEh

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1212-63-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1212-64-0x000000000041F640-mapping.dmp	xloader
behavioral1/memory/1212-66-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/288-73-0x00000000000B0000-0x00000000000DC000-memory.dmp	xloader

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation tmp.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	tmp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.exemsiexec.exe

description	pid	process	target process
PID 1644 set thread context of 1212	1644	tmp.exe	tmp.exe
PID 1212 set thread context of 1268	1212	tmp.exe	Explorer.EXE
PID 288 set thread context of 1268	288	msiexec.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

tmp.exemsiexec.exe

pid	process
1212	tmp.exe
1212	tmp.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe
288	msiexec.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

tmp.exemsiexec.exe

pid process

1212 tmp.exe
1212 tmp.exe
1212 tmp.exe
288 msiexec.exe
288 msiexec.exe
288 msiexec.exe
288 msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 1212 tmp.exe
Token: SeDebugPrivilege 288 msiexec.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1212	tmp.exe
Token: SeDebugPrivilege	288	msiexec.exe

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

tmp.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 1644 wrote to memory of 1212	1644	tmp.exe	tmp.exe
PID 1644 wrote to memory of 1212	1644	tmp.exe	tmp.exe
PID 1644 wrote to memory of 1212	1644	tmp.exe	tmp.exe
PID 1644 wrote to memory of 1212	1644	tmp.exe	tmp.exe
PID 1644 wrote to memory of 1212	1644	tmp.exe	tmp.exe
PID 1644 wrote to memory of 1212	1644	tmp.exe	tmp.exe
PID 1644 wrote to memory of 1212	1644	tmp.exe	tmp.exe
PID 1268 wrote to memory of 288	1268	Explorer.EXE	msiexec.exe
PID 1268 wrote to memory of 288	1268	Explorer.EXE	msiexec.exe
PID 1268 wrote to memory of 288	1268	Explorer.EXE	msiexec.exe
PID 1268 wrote to memory of 288	1268	Explorer.EXE	msiexec.exe
PID 1268 wrote to memory of 288	1268	Explorer.EXE	msiexec.exe
PID 1268 wrote to memory of 288	1268	Explorer.EXE	msiexec.exe
PID 1268 wrote to memory of 288	1268	Explorer.EXE	msiexec.exe
PID 288 wrote to memory of 536	288	msiexec.exe	Firefox.exe
PID 288 wrote to memory of 536	288	msiexec.exe	Firefox.exe
PID 288 wrote to memory of 536	288	msiexec.exe	Firefox.exe
PID 288 wrote to memory of 536	288	msiexec.exe	Firefox.exe
PID 288 wrote to memory of 536	288	msiexec.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1268

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1644

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1212

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:288

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:536

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/288-70-0x0000000000000000-mapping.dmp

Download
memory/288-75-0x0000000000AD0000-0x0000000000B60000-memory.dmp

Filesize
576KB

Download
memory/288-73-0x00000000000B0000-0x00000000000DC000-memory.dmp

Filesize
176KB

Download
memory/288-74-0x0000000002160000-0x0000000002463000-memory.dmp

Filesize
3.0MB

Download
memory/288-72-0x0000000000060000-0x0000000000074000-memory.dmp

Filesize
80KB

Download
memory/1212-66-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1212-68-0x00000000003E0000-0x00000000003F1000-memory.dmp

Filesize
68KB

Download
memory/1212-61-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1212-63-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1212-64-0x000000000041F640-mapping.dmp

Download
memory/1212-60-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1212-67-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/1268-69-0x0000000006090000-0x0000000006212000-memory.dmp

Filesize
1.5MB

Download
memory/1268-76-0x0000000005F10000-0x0000000005FEC000-memory.dmp

Filesize
880KB

Download
memory/1268-77-0x0000000005F10000-0x0000000005FEC000-memory.dmp

Filesize
880KB

Download
memory/1644-54-0x0000000001390000-0x0000000001430000-memory.dmp

Filesize
640KB

Download
memory/1644-59-0x0000000000DD0000-0x0000000000E02000-memory.dmp

Filesize
200KB

Download
memory/1644-58-0x0000000007D80000-0x0000000007DF6000-memory.dmp

Filesize
472KB

Download
memory/1644-57-0x00000000006C0000-0x00000000006CE000-memory.dmp

Filesize
56KB

Download
memory/1644-56-0x0000000000560000-0x0000000000580000-memory.dmp

Filesize
128KB

Download
memory/1644-55-0x00000000769D1000-0x00000000769D3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads